@article{MT_2004_7_1_a2,
     author = {\`E. Yu. Emel'yanov},
     title = {Regularity {Conditions} for {Markov} {Semigroups} on {Abstract} $L^1${-Spaces}},
     journal = {Matemati\v{c}eskie trudy},
     pages = {50--82},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2004_7_1_a2/}
}