TY - JOUR T1 - Properties of real and complex ETFs and their application to the design of low coherence frames JF - Linear Algebra and its Applications Y1 - 2016 A1 - Cristian Rusu A1 - Nuria González-Prelcic A1 - Robert W. Heath Jr. VL - 508 UR - http://www.sciencedirect.com/science/article/pii/S0024379516302555 ER -