Francesco Guarato John C. T. Hallam Determining Sound Source Orientation from Source Directivity and Multi-microphone Recordings. 429-438 2009 IWINAC (2) http://dx.doi.org/10.1007/978-3-642-02267-8_46 conf/iwinac/2009-2 db/conf/iwinac/iwinac2009-2.html#GuaratoH09