Barrett, W. W., Johnson, C. R., & Loewy, R. (1996). The real positive definite completation problem: Cycle completability. American Mathematical Society.
Style de citation Chicago (17e éd.)Barrett, Wayne W., Charlles R. Johnson, et Raphael Loewy. The Real Positive Definite Completation Problem: Cycle Completability. Providence: American Mathematical Society, 1996.
Style de citation MLA (9e éd.)Barrett, Wayne W., et al. The Real Positive Definite Completation Problem: Cycle Completability. American Mathematical Society, 1996.
Attention : ces citations peuvent ne pas être correctes à 100%.