Damle, Anil A Geometric Approach to Archetypal Analysis and Nonnegative Matrix Factorization. [electronic resource] - Technometrics : a journal of statistics for the physical, chemical, and engineering sciences 2017 - 361-370 p. digital Publication Type: Journal Article ISSN: 0040-1706 Standard No.: 10.1080/00401706.2016.1247017 doi