Ross Street. Higher categories, strings, cubes and simplex equations. Applied Categorical Structures, 3(1):29-77, 1995. [doi]
@article{Street95, title = {Higher categories, strings, cubes and simplex equations}, author = {Ross Street}, year = {1995}, doi = {10.1007/BF00872948}, url = {http://dx.doi.org/10.1007/BF00872948}, researchr = {https://researchr.org/publication/Street95}, cites = {0}, citedby = {0}, journal = {Applied Categorical Structures}, volume = {3}, number = {1}, pages = {29-77}, }