@article{SM_1990_66_2_a0,
     author = {I. Kh. Musikaev and M. A. Taitslin},
     title = {On dynamic theories of free algebras},
     journal = {Sbornik. Mathematics},
     pages = {313--327},
     year = {1990},
     volume = {66},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1990_66_2_a0/}
}