Hepp, Klaus (1966). «Proof of the Bogoliubov-Parasiuk theorem on renormalization». Communications in Mathematical Physics2 (1): 301-326. Bibcode:1966CMaPh...2..301H. doi:10.1007/BF01773358.
Hepp, Klaus (1966). «Proof of the Bogoliubov-Parasiuk theorem on renormalization». Communications in Mathematical Physics2 (1): 301-326. Bibcode:1966CMaPh...2..301H. doi:10.1007/BF01773358.