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@article{CMJ_2010__60_2_a3, author = {Martini, Horst and Spirova, Margarita}, title = {A new type of orthogonality for normed planes}, journal = {Czechoslovak Mathematical Journal}, pages = {339--349}, publisher = {mathdoc}, volume = {60}, number = {2}, year = {2010}, mrnumber = {2657953}, zbl = {1224.46026}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMJ_2010__60_2_a3/} }
Martini, Horst; Spirova, Margarita. A new type of orthogonality for normed planes. Czechoslovak Mathematical Journal, Tome 60 (2010) no. 2, pp. 339-349. http://geodesic.mathdoc.fr/item/CMJ_2010__60_2_a3/