@article{GDZPPN002483467, title = {An Example on Strong Equivalence of Positive Integral Matrices.}, journal = {Monatshefte f\"ur Mathematik}, volume = {95}, year = {1983}, pages = {45-56}, zbl = {0499.15003}, url = {http://dml.mathdoc.fr/item/GDZPPN002483467} }
Riedel, Norbert. An Example on Strong Equivalence of Positive Integral Matrices.. Monatshefte für Mathematik, Tome 95 (1983) pp. 45-56. http://gdmltest.u-ga.fr/item/GDZPPN002483467/