TY - JOUR AU - Harder, G. TI - A Gauss-Bonnet formula for discrete arithmetically defined groups JO - Annales scientifiques de l'École Normale Supérieure PY - 1971 DA - 1971/// SP - 409 EP - 455 VL - Ser. 4, 4 IS - 3 PB - Elsevier UR - http://www.numdam.org/articles/10.24033/asens.1217/ UR - https://zbmath.org/?q=an%3A0232.20088 UR - https://www.ams.org/mathscinet-getitem?mr=46 #8255 UR - https://doi.org/10.24033/asens.1217 DO - 10.24033/asens.1217 LA - en ID - ASENS_1971_4_4_3_409_0 ER -