@article{10_4064_ap3737_12_2015,
     author = {Gabriela Raluca Mocanu},
     title = {$C_0$-semigroups generated by second order differential operators},
     journal = {Annales Polonici Mathematici},
     pages = {57--66},
     publisher = {mathdoc},
     volume = {116},
     number = {1},
     year = {2016},
     doi = {10.4064/ap3737-12-2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap3737-12-2015/}
}