@article{10_4064_ap_1_1_29_33,
     author = {A. Pli\'s},
     title = {Haantjes and {Alt} curvatures in abstract metric spaces},
     journal = {Annales Polonici Mathematici},
     pages = {29--33},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {1955},
     doi = {10.4064/ap-1-1-29-33},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-1-1-29-33/}
}