@conference{Kumar_2019_5gwf,title = "2D Active Antenna Array Design for mMIMO to Improve Spectral and Energy Efficiency",author = "Atul Kumar, Jens Bartelt, André Barreto, Gerhard Fettweis",year = "2019",booktitle = "IEEE 2nd 5G World Forum (5GWF)",address = "Dresden, Germany",month = "September",url = "<a href="https://doi.org/10.1109/5GWF.2019.8911633">https://doi.org/10.1109/5GWF.2019.8911633</a>",doi = "10.1109/5GWF.2019.8911633"}