TY  - JOUR
AU  - Betti Salzberg
TI  - Buildings and shadows.
JO  - Aequationes mathematicae
PY  - 1982
SP  - 1
EP  - 20
VL  - 25
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1982__25_136943/
ID  - AM2_1982__25_136943
ER  -