@article{ITA_2012__46_1_3_0,
     author = {Avgustinovich, Sergey and Karhum\"aki, Juhani and Puzynina, Svetlana},
     title = {On abelian versions of critical factorization theorem},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {3--15},
     publisher = {EDP-Sciences},
     volume = {46},
     number = {1},
     year = {2012},
     doi = {10.1051/ita/2011121},
     mrnumber = {2904957},
     zbl = {1247.68200},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita/2011121/}
}