SWAMY, SR. SANDWICH THEOREMS FOR ANALYTIC FUNCTIONS DEFINED BY CERTAIN NEW OPERATORS. Journal of Global Research in Mathematical Archives(JGRMA), [S. l.], v. 1, n. 2, p. 76–85, 2013. Disponível em: https://jgrma.com/index.php/jgrma/article/view/21. Acesso em: 29 apr. 2025.