Antonio Martínez Cegarra, Benjamín A. Heredia, Josué Remedios. Double Groupoids and Homotopy 2-types. Applied Categorical Structures, 20(4):323-378, 2012. [doi]
@article{CegarraHR12,
title = {Double Groupoids and Homotopy 2-types},
author = {Antonio Martínez Cegarra and Benjamín A. Heredia and Josué Remedios},
year = {2012},
doi = {10.1007/s10485-010-9240-1},
url = {http://dx.doi.org/10.1007/s10485-010-9240-1},
researchr = {https://researchr.org/publication/CegarraHR12},
cites = {0},
citedby = {0},
journal = {Applied Categorical Structures},
volume = {20},
number = {4},
pages = {323-378},
}