3D MIMO Outdoor-to-Indoor Propagation Channel Measurement. - Kristem, Vinod; Sangodoyin, Seun; Bas, Celalettin Umit; Käske, Martin; Lee, Juho; Schneider, Christian; Sommerkorn, Gerd; Zhang, Charlie Jianzhong; Thomä, Reiner S.; Molisch, Andreas F. (IEEE Trans. Wirel. Commun., 2017)