2. http://www.ecured.cu/Pedro_López_Paz

3. www.chesshistory.com

4. http://www.ajedrez365.com/search/label/Historia del Ajedrez

5. www.theweekinchess.com

6. www.chessbase.com

7. www.cadapzona2.com

8. www.iccf.com

9.www.ladac.org.ar

10.http://www.teleschach.de/bdf

11.http://ajedrezmagno.cubava.cu

12.www.caissadigital1921.cubava.cu

13.http://www.ajedrezcuba.info

14.http://www.chess-results.com

15.www.chessbomb.com

16.http://acernuda.com

17.http://pinkydeportes.over-blog.com

28.https://www.ecured.cu/Alcides_M%C3%A1s