@misc {MATHEDUC.02402080,
author = {Buckley, S.},
title = {Elementary algebra: systems of equations. Elementare Algebra: Gleichungssysteme.},
howpublished = {Interact. Learn. Int. (Jan-Mar 1992) v. 8(1) p. 71-73. Courseware review: Elementary algebra: systems of equations; Heimer, R. (1983), Courses by Computer Inc., State Coll., PA (USA). [ISSN 0748-5743]},
year = {1992},
msc2010 = {H30xx (R20xx U50xx)},
identifier = {1992l.02572},
}