@article{RM_1969_24_1_a2,
     author = {M. S. Burgin},
     title = {The freeness theorem in some varieties of linear algebras and rings},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {25--35},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1969},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1969_24_1_a2/}
}