@misc{propolis+beekeeping+medicinal+product, author = {Malina, Dagmara i Sobczak-Kupiec, Agnieszka i Tyliszczak, Bożena i Bialik-Wąs, Katarzyna i Wzorek, Zbigniew}, title = {Propolis – beekeeping medicinal product}, journal = {Czasopismo Techniczne. Chemia}, address = {Kraków}, publisher = {Wydawnictwo PK}, date = {2012}, number = {R. 109, Z. 17, 2-Ch} }