AKYILDIZ, T.; ŞENYAZ, S.; SAHIN, B. The surfaces with idempotent shape operator matrix defined along a surface curve. Calculation, [S. l.], v. 2, n. 1, p. 48–54, 2026. Disponível em: https://simadp.com/calculation/article/view/calcv2i1-5. Acesso em: 2 aug. 2026.