@article{1183547850, author = {Busemann, Herbert}, title = {Review: A. V. Pogorelov, Hilbert's fourth problem}, journal = {Bull. Amer. Math. Soc. (N.S.)}, volume = {4}, number = {1}, year = {1981}, pages = { 87-90}, language = {en}, url = {http://dml.mathdoc.fr/item/1183547850} }
Busemann, Herbert. Review: A. V. Pogorelov, Hilbert's fourth problem. Bull. Amer. Math. Soc. (N.S.), Tome 4 (1981) no. 1, pp. 87-90. http://gdmltest.u-ga.fr/item/1183547850/