@article{10_4064_ap_15_1_77_84,
     author = {M. Kucharzewski and M. Kuczma},
     title = {Determination of linear differential geometric objects of the first class, with two components, in a two-dimensional space},
     journal = {Annales Polonici Mathematici},
     pages = {77--84},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {1964},
     doi = {10.4064/ap-15-1-77-84},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-15-1-77-84/}
}