@article{10_21136_CMJ_1971_101005,
     author = {Szybiak, Andrzej},
     title = {Center-projective connections},
     journal = {Czechoslovak Mathematical Journal},
     pages = {99--108},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {1971},
     doi = {10.21136/CMJ.1971.101005},
     mrnumber = {0295247},
     zbl = {0215.51101},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101005/}
}