\bib{1991/rosenstiel} \yr 1991 \by E. Rosenstiel \by J. A. Dardis \by C. R. Rosenstiel \paper The four least solutions in distinct positive integers of the Diophantine equation $s=x^3+y^3=z^3+w^3=u^3+v^3=m^3+n^3$ \jour Bulletin of the Institute of Mathematics and its Applications \issn 0905--5628 \vol 27 \pages 155--157 \url http://cr.yp.to/\allowbreak bib/\allowbreak entries.html#\allowbreak 1991/\allowbreak rosenstiel \endref