Skrzypkowska, E. and Wowk, C. (1992) “Linkage and the basic part of Witt rings”, Annales Mathematicae Silesianae, 6, pp. 9–12. Available at: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14261 (Accessed: 6 May 2025).