Grammer, K.; Thornhill, R. (1994). «Human (Homo sapiens) facial attractiveness and sexual selection: the role of symmetry and averageness». Journal of Comparative Psychology (Washington, D.C.) 108 (3): 233-42. PMID7924253. doi:10.1037/0735-7036.108.3.233.
Grammer, K.; Thornhill, R. (1994). «Human (Homo sapiens) facial attractiveness and sexual selection: the role of symmetry and averageness». Journal of Comparative Psychology (Washington, D.C.) 108 (3): 233-42. PMID7924253. doi:10.1037/0735-7036.108.3.233.
Dunlap, David W. (31 de julio de 2009). «Behind the Scenes: Edgar Martins Speaks». New York Times. Consultado el 11 de noviembre de 2014. «“My starting point for this construction was a simple statement which I once read (and which does not necessarily reflect my personal views): ‘Only a bad architect relies on symmetry; instead of symmetrical layout of blocks, masses and structures, Modernist architecture relies on wings and balance of masses.’».