00725nac# 2200241 i 450 VAN0002357920251117022524.4070072-528502197561220040913a1950 |0itac50 baUS|||| |||||b||||||||||Graduate texts in mathematicsNew York [etc.]Springer1950-VAN00241122GTMUSNew YorkVANL000011Springer <editore>VANV108073650ITSOL20251121RICAhttps://www.springer.com/series/136https://www.springer.com/series/136VAN00023579Graduate texts in mathematics104155UNICAMPANIA