TY  - JOUR
AU  - Janjić, Milan
TI  - Some formulas for numbers of restricted words
JO  - Journal of integer sequences
PY  - 2017
VL  - 20
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JIS_2017__20_6_a3/
LA  - en
ID  - JIS_2017__20_6_a3
ER  -