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@article{MM2_1993__79_1_155853, author = {Oleg V. Davydov}, title = {Some condensation theorems for semigroup operators.}, journal = {Manuscripta mathematica}, pages = {435--446}, publisher = {mathdoc}, volume = {79}, number = {1}, year = {1993}, zbl = {0798.47033}, url = {http://geodesic.mathdoc.fr/item/MM2_1993__79_1_155853/} }
Oleg V. Davydov. Some condensation theorems for semigroup operators.. Manuscripta mathematica, Tome 79 (1993) no. 1, pp. 435-446. http://geodesic.mathdoc.fr/item/MM2_1993__79_1_155853/