Paper  doi  bibtex   

@article{bilir_variation_2008,
	title = {Variation in cone and seed characters in clonal seed orchards of {Pinus} sylvestris},
	volume = {36},
	issn = {0169-4286, 1573-5095},
	url = {http://link.springer.com/10.1007/s11056-008-9092-9},
	doi = {10/fkbk7b},
	language = {en},
	number = {2},
	urldate = {2021-06-10},
	journal = {New Forests},
	author = {Bilir, Nebi and Prescher, Finnvid and Lindgren, Dag and Kroon, Johan},
	month = sep,
	year = {2008},
	pages = {187--199},
}