@article{10_4064_ap_28_3_275_284,
     author = {W. Waliszewski},
     title = {On the tangency of sets in generalized metric spaces},
     journal = {Annales Polonici Mathematici},
     pages = {275--284},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1973},
     doi = {10.4064/ap-28-3-275-284},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-28-3-275-284/}
}