Predel, B. (1998), Madelung, O. (ed.), "Se-Sr (Selenium-Strontium)", Pu-Re – Zn-Zr, Landolt-Börnstein - Group IV Physical Chemistry (in ஆங்கிலம்), vol. 5 J (Landolt-Börnstein - Group IV Physical Chemistry ed.), Berlin/Heidelberg: Springer-Verlag, p. 1, doi:10.1007/10551312_2714, ISBN978-3-540-61742-6, retrieved 2023-07-07
Predel, B. (1998), Madelung, O. (ed.), "Se-Sr (Selenium-Strontium)", Pu-Re – Zn-Zr, Landolt-Börnstein - Group IV Physical Chemistry (in ஆங்கிலம்), vol. 5 J (Landolt-Börnstein - Group IV Physical Chemistry ed.), Berlin/Heidelberg: Springer-Verlag, p. 1, doi:10.1007/10551312_2714, ISBN978-3-540-61742-6, retrieved 2023-07-07