@article{oai:repository.dl.itc.u-tokyo.ac.jp:00039785,
 author = {Ouchi, Sunao and Fujita, H.},
 issue = {1},
 journal = {Journal of the Faculty of Science, the University of Tokyo. Sect. 1 A, Mathematics = 東京大学理学部紀要. 第1類A, 数学},
 month = {Mar},
 note = {application/pdf},
 pages = {19--41},
 title = {On the analyticity in time of solutions of initial boundary value problems for semi-linear parabolic differential equations with monotone nonlinearity},
 volume = {21},
 year = {1974}
}