Floor van Lamoen, Michel Bataille. Morley's Triangle and Lemma: 11038. The American Mathematical Monthly, 112(5):474, 2005. [doi]
@article{LamoenB05, title = {Morley's Triangle and Lemma: 11038}, author = {Floor van Lamoen and Michel Bataille}, year = {2005}, url = {http://www.jstor.org/stable/30037512}, researchr = {https://researchr.org/publication/LamoenB05}, cites = {0}, citedby = {0}, journal = {The American Mathematical Monthly}, volume = {112}, number = {5}, pages = {474}, }