@article{PismaZhETF.3.497, title = {Possible Presence of Relic Quarks in Cosmic Rays}, author = {Feinberg, E. L.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {3}, issue = {12}, pages = {497}, year = {1966}, doi = {}, url = {http://jetpletters.ru/ps/0/article_24810.shtml}, }