@article{MAN_1937__113_159897,
     author = {K. Reidemeister and F. BACHMANN},
     title = {Die metrische {Form} in der absoluten und der elliptischen {Geometrie.}},
     journal = {Mathematische Annalen},
     pages = {DCCXLVIII--DCCLXV},
     publisher = {mathdoc},
     volume = {113},
     year = {1937},
     zbl = {0015.31205},
     url = {http://geodesic.mathdoc.fr/item/MAN_1937__113_159897/}
}