@article{ARM_1986__22_4_a5,
     author = {Krupka, Demeter},
     title = {Geometry of {Lagrangean} structures. {II}},
     journal = {Archivum mathematicum},
     pages = {211--228},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1986},
     mrnumber = {868536},
     zbl = {0618.58003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1986__22_4_a5/}
}