VERMA, Amit Kumar; SINGH, Ashok Kumar. Role of H+ and Ca++ concentrations on Vorticella stalk Contraction Determination. International Journal of Scientific Research in Biological Sciences, [S. l.], v. 7, n. 2, p. 77–81, 2020. Disponível em: https://ijsrbs.isroset.org/index.php/j/article/view/341. Acesso em: 20 may. 2025.