TY  - JOUR
AU  - E.C. Turner
AU  - R.Z. Goldstein
TI  - Reduced Forms for Quadratic Words and Spines of 2-manifolds.
JO  - Mathematische Zeitschrift
PY  - 1981
SP  - 195
EP  - 198
VL  - 176
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1981__176_183638/
ID  - MZ_1981__176_183638
ER  -