| Marin, Raquel [1] |
| Marrero Arteaga, Manuel Alejandro [1] |
| Marrero, M.A. [1] |
| Marrero, Manuel [3] |
| Martín, Virginia [1] |
| Martínez Llorens, S. [1] |
| Mesa Herrera, Fátima [1] |
| Monge Ortiz, Raquel [1] |
| Monroig, Ó. [1] |
| Monroig, Óscar [4] |
| Mylonas, Constantinos C. [2] |