@article{AUM_2019_73_2_a3, author = {Zagrebnov, Valentin}, title = {Approximations of self-adjoint {\(C_0\)-semigroups} in the operator-norm topology}, journal = {Annales Universitatis Mariae Curie-Sk{\l}odowska. Mathematica }, publisher = {mathdoc}, volume = {73}, number = {2}, year = {2019}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AUM_2019_73_2_a3/} }