@article{NSJOM_1993_23_2a_21,
     author = {Doroslova\v{c}ki Rade},
     title = {The set 

 of all the words of length n over any alphabet with a forbidden good 

 subword},
     journal = {Novi Sad Journal of Mathematics},
     pages = {239-244},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {1993},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1993_23_2a_21/}
}