José Antonio de la Peña, L. Mendoza. The fundamental group and Galois coverings of hexagonal systems in 3-space. Int. J. Math. Mathematical Sciences, 2006, 2006. [doi]
@article{PenaM06,
title = {The fundamental group and Galois coverings of hexagonal systems in 3-space},
author = {José Antonio de la Peña and L. Mendoza},
year = {2006},
doi = {10.1155/IJMMS/2006/47381},
url = {http://dx.doi.org/10.1155/IJMMS/2006/47381},
researchr = {https://researchr.org/publication/PenaM06},
cites = {0},
citedby = {0},
journal = {Int. J. Math. Mathematical Sciences},
volume = {2006},
}