@article{10_4064_sm_52_2_89_108,
     author = {T. Le\.za\'nski},
     title = {Sur l'int\'egration directe des \'equations d'\'evolution 2},
     journal = {Studia Mathematica},
     pages = {89--108},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {1974},
     doi = {10.4064/sm-52-2-89-108},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-52-2-89-108/}
}