Santalo, L. A. Integral geometry on surfaces of constant negative curvature. (English) Zbl 0063.06703 Duke Math. J. 10, 687-709 (1943). Not reviewed Cited in 12 Documents PDFBibTeX XMLCite \textit{L. A. Santalo}, Duke Math. J. 10, 687--709 (1943; Zbl 0063.06703) Full Text: DOI