On the leading singularity in the angular momentum plane in perturbation theory
1967 ◽
Vol 8
(10)
◽
pp. 1957-1972
◽
1971 ◽
Vol 12
(7)
◽
pp. 1142-1155
◽
1967 ◽
Vol 18
(8)
◽
pp. 300-300
◽
Keyword(s):
Keyword(s):