@article{10_4064_ap_40_3_207_212,
     author = {Wac{\l}aw Wierzbicki},
     title = {The tangent space and the arcwise tangent space to a differential space},
     journal = {Annales Polonici Mathematici},
     pages = {207--212},
     publisher = {mathdoc},
     volume = {40},
     number = {3},
     year = {1981},
     doi = {10.4064/ap-40-3-207-212},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-40-3-207-212/}
}