It is noted that the examples provided in the paper "Two-dimensional examples of rank-one convex functions that are not quasiconvex" by M. K. Benaouda and J. J. Telega, Ann. Polon. Math. 73 (2000), 291-295, contain unrecoverable errors.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-ap86-2-9, author = {Patrizio Neff}, title = {Critique of "Two-dimensional examples of rank-one convex functions that are not quasiconvex" by M. K. Benaouda and J. J. Telega}, journal = {Annales Polonici Mathematici}, volume = {85}, year = {2005}, pages = {193-195}, zbl = {1075.49503}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap86-2-9} }
Patrizio Neff. Critique of "Two-dimensional examples of rank-one convex functions that are not quasiconvex" by M. K. Benaouda and J. J. Telega. Annales Polonici Mathematici, Tome 85 (2005) pp. 193-195. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap86-2-9/