@article{SJL_1963-1964___2_68_0, author = {Yosida, K\^osaku}, title = {Holomorphic semi-groups}, journal = {S\'eminaire Jean Leray}, pages = {68--75}, publisher = {Coll\`ege de France}, number = {2}, year = {1963-1964}, language = {en}, url = {http://archive.numdam.org/item/SJL_1963-1964___2_68_0/} }