ALOLAIYAN, H. A. Existence Of Coefficient Subring for Transcendental Extension Ring. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 13, n. 3, p. 7195–7204, 2016. DOI: 10.24297/jam.v13i3.6088. Disponível em: https://rajpub.com/index.php/jam/article/view/6088. Acesso em: 3 jul. 2024.