@article{MAN_1937__113_159884,
     author = {J. Haantjes and A.J. Schouten},
     title = {Beitr\"age zur allgemeinen (gekr\"ummten) konformen {Differentialgeometrie.} {II.}},
     journal = {Mathematische Annalen},
     pages = {DLXVIII--DLXXXIII},
     publisher = {mathdoc},
     volume = {113},
     year = {1937},
     zbl = {0015.17701},
     url = {http://geodesic.mathdoc.fr/item/MAN_1937__113_159884/}
}