1.
PĂ©rez-de-Tejada H. Ionospheric measurements conducted during the July 11,1991 solar total eclipse at the ionospheric station "El Cerrillo", Mexico. Geofis Int [Internet]. 1993 Jan. 1 [cited 2024 May 18];32(1):15-20. Available from: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1344