10.1184/R1/6478511.v1 M Marcus M Marcus Victor J. Mizel Victor J. Mizel Nemitsky operators on Sobolev spaces Carnegie Mellon University 1971 Sobolev spaces. Operator theory. 1971-01-01 00:00:00 Journal contribution https://kilthub.cmu.edu/articles/journal_contribution/Nemitsky_operators_on_Sobolev_spaces/6478511 Mathematics Technical Report