@article{PORMA_1980__39_1-4_115417,
     author = {Santal\'o, L.A.},
     title = {Notes on the integral geometry in the hyperbolic plane},
     journal = {Portugaliae mathematica},
     pages = {239--249},
     publisher = {mathdoc},
     volume = {39},
     number = {1-4},
     year = {1980},
     mrnumber = {0776239},
     zbl = {0562.52003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1980__39_1-4_115417/}
}