B, 25 (1): 29, Bibcode:1967PhLB...25...29F, doi:10.1016/0370-2693(67)90067-6 Citation author given name L. D. title of source Feynman diagrams for the Yang-Mills field year 1967 last1 Faddeev last2 Popov author2 Popov first1 L. D. first2 V. journal Phys. Lett. B volume 25 issue 1 pages 29 bibcode 1967PhLB...25...29F doi 10.1016/0370-2693(67)90067-6 DOI 10.1016/0370-2693(67)90067-6 ↑ W. F. Chen.