Paper  bibtex   

@techreport{desante_monitoring_1993,
	address = {Fort Collins, CO, USA},
	type = {General {Technical} {Report}},
	title = {The {Monitoring} {Avian} {Productivity} and {Survivorship} ({MAPS}) {Program}: overview and progress},
	url = {https://www.fs.usda.gov/treesearch/pubs/22901},
	urldate = {2019-05-21},
	institution = {U.S. Forest Service},
	author = {DeSante, David F. and Williams, Oriane E. and Burton, Kenneth M.},
	year = {1993}
}