@article{10_1090_S1079_6762_98_00053_5,
     author = {\~Alvarez Paiva, J. and Fernandes, E.},
     title = {Crofton formulas in projective {Finsler} spaces},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {91--100},
     publisher = {mathdoc},
     volume = {04},
     year = {1998},
     doi = {10.1090/S1079-6762-98-00053-5},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-98-00053-5/}
}