Dave Zachariah Magnus Jansson Saikat Chatterjee Enhanced Capon beamformer using regularized covariance matching. 97-100 2013 CAMSAP https://doi.org/10.1109/CAMSAP.2013.6714016 https://www.wikidata.org/entity/Q62585898 conf/camsap/2013 db/conf/camsap/camsap2013.html#ZachariahJC13