KALINOWSKI, Józef. On invertible preservers of singularity and nonsingularity of matrices over a field. Annales Mathematicae Silesianae, [S. l.], v. 24, p. 27–33, 2010. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14032. Acesso em: 7 may. 2025.