@article{VMJ_2012_14_1_a7,
     author = {E. Chil},
     title = {Extension of an almost $f$-algebra multiplication},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {75--77},
     year = {2012},
     volume = {14},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2012_14_1_a7/}
}