%0 Journal Article
%T Second international conference on nonlocal quantum field theory
%A M. K. Volkov
%A G. V. Efimov
%I Physics-Uspekhi
%D 1971
%J Phys. Usp.
%V 14
%N 2
%P 223-227
%U https://ufn.ru/en/articles/1971/2/k/
%U https://doi.org/10.1070/PU1971v014n02ABEH004464