Vishnu V. Ratnam Andreas F. Molisch Ozgun Y. Bursalioglu Haralabos C. Papadopoulos 4105-4120 2018 66 IEEE Trans. Signal Process. 15 https://doi.org/10.1109/TSP.2018.2838557 https://www.wikidata.org/entity/Q129799737 db/journals/tsp/tsp66.html#RatnamMBP18