@misc{bo-christer_bjork_scientific_nodate,
	type = {text},
	title = {Scientific journal publishing: yearly volume and open access availability},
	copyright = {http://creativecommons.org/licenses/by-nd-nc/1.0/},
	shorttitle = {Scientific journal publishing},
	url = {http://informationr.net/ir/14-1/paper391.html},
	urldate = {2010-08-22},
	author = {Bo-Christer Bjork, Annikki Roos},
	note = {Introduction. We estimate the total yearly volume of peer-reviewed scientific journal articles published world-wide as well as the share of these articles available openly on the Web either directly or as copies in e-print repositories. Method. We rely on data from two commercial databases (ISI and Ulrich's) supplemented by sampling and Google searches. Analysis. A central issue is the finding that ISI-indexed journals publish far more articles per year (111) than non ISI-indexed journals (26), which means that the total figure we obtain is much lower than many earlier estimates. Our method of analysing the number of repository copies (green open access) differs from several earlier studies which have studied the number of copies in identified repositories, since we start from a random sample of articles and then test if copies can be found via a Web search engine. Results. We estimate that in 2006 the total number of articles published was approximately 1 350 000. Of this number 4.6 \% became immediately openly available and an additional 3.5 \% after an embargo period of typically one year. Furthermore usable copies of 11.3 \% could be found in subject-specific or institutional repositories or on the home pages of the authors. Conclusions. We believe our results are the most reliable so far published, and should thus be useful in the on-going debate about Open Access among both academics and science policy makers. The method is replicable and also lends itself to longitudinal studies in the future.},
	keywords = {Scholarly communication and open access},
}

{"_id":"NKC35nzMtKbg6Mwgx","bibbaseid":"bochristerbjork-scientificjournalpublishingyearlyvolumeandopenaccessavailability","author_short":["Bo-Christer Bjork, A. R."],"bibdata":{"bibtype":"misc","type":"text","title":"Scientific journal publishing: yearly volume and open access availability","copyright":"http://creativecommons.org/licenses/by-nd-nc/1.0/","shorttitle":"Scientific journal publishing","url":"http://informationr.net/ir/14-1/paper391.html","urldate":"2010-08-22","author":[{"propositions":[],"lastnames":["Bo-Christer","Bjork"],"firstnames":["Annikki","Roos"],"suffixes":[]}],"note":"Introduction. We estimate the total yearly volume of peer-reviewed scientific journal articles published world-wide as well as the share of these articles available openly on the Web either directly or as copies in e-print repositories. Method. We rely on data from two commercial databases (ISI and Ulrich's) supplemented by sampling and Google searches. Analysis. A central issue is the finding that ISI-indexed journals publish far more articles per year (111) than non ISI-indexed journals (26), which means that the total figure we obtain is much lower than many earlier estimates. Our method of analysing the number of repository copies (green open access) differs from several earlier studies which have studied the number of copies in identified repositories, since we start from a random sample of articles and then test if copies can be found via a Web search engine. Results. We estimate that in 2006 the total number of articles published was approximately 1 350 000. Of this number 4.6 % became immediately openly available and an additional 3.5 % after an embargo period of typically one year. Furthermore usable copies of 11.3 % could be found in subject-specific or institutional repositories or on the home pages of the authors. Conclusions. We believe our results are the most reliable so far published, and should thus be useful in the on-going debate about Open Access among both academics and science policy makers. The method is replicable and also lends itself to longitudinal studies in the future.","keywords":"Scholarly communication and open access","bibtex":"@misc{bo-christer_bjork_scientific_nodate,\n\ttype = {text},\n\ttitle = {Scientific journal publishing: yearly volume and open access availability},\n\tcopyright = {http://creativecommons.org/licenses/by-nd-nc/1.0/},\n\tshorttitle = {Scientific journal publishing},\n\turl = {http://informationr.net/ir/14-1/paper391.html},\n\turldate = {2010-08-22},\n\tauthor = {Bo-Christer Bjork, Annikki Roos},\n\tnote = {Introduction. We estimate the total yearly volume of peer-reviewed scientific journal articles published world-wide as well as the share of these articles available openly on the Web either directly or as copies in e-print repositories. Method. We rely on data from two commercial databases (ISI and Ulrich's) supplemented by sampling and Google searches. Analysis. A central issue is the finding that ISI-indexed journals publish far more articles per year (111) than non ISI-indexed journals (26), which means that the total figure we obtain is much lower than many earlier estimates. Our method of analysing the number of repository copies (green open access) differs from several earlier studies which have studied the number of copies in identified repositories, since we start from a random sample of articles and then test if copies can be found via a Web search engine. Results. We estimate that in 2006 the total number of articles published was approximately 1 350 000. Of this number 4.6 \\% became immediately openly available and an additional 3.5 \\% after an embargo period of typically one year. Furthermore usable copies of 11.3 \\% could be found in subject-specific or institutional repositories or on the home pages of the authors. Conclusions. We believe our results are the most reliable so far published, and should thus be useful in the on-going debate about Open Access among both academics and science policy makers. The method is replicable and also lends itself to longitudinal studies in the future.},\n\tkeywords = {Scholarly communication and open access},\n}\n\n\n\n\n\n\n\n","author_short":["Bo-Christer Bjork, A. R."],"key":"bo-christer_bjork_scientific_nodate","id":"bo-christer_bjork_scientific_nodate","bibbaseid":"bochristerbjork-scientificjournalpublishingyearlyvolumeandopenaccessavailability","role":"author","urls":{"Paper":"http://informationr.net/ir/14-1/paper391.html"},"keyword":["Scholarly communication and open access"],"metadata":{"authorlinks":{}},"downloads":0},"bibtype":"misc","biburl":"https://bibbase.org/zotero/csbalseiro","dataSources":["yDB5Ad6GWQeunFDKH"],"keywords":["scholarly communication and open access"],"search_terms":["scientific","journal","publishing","yearly","volume","open","access","availability","bo-christer bjork"],"title":"Scientific journal publishing: yearly volume and open access availability","year":null}