@conference{AS,
author = "Tuomas Virtanen and Bhiksha Raj and Jort Gemmeke and Hugo Van hamme",
booktitle = "In Proc. International Conference on Acoustics, Speech, and Signal Processing",
keywords = "separation; NMF",
title = "{A}ctive-set {N}ewton algorithm for non-negative sparse coding of audio",
url = "https://www.cs.tut.fi/sgn/arg/music/tuomasv/ASNA_L1.pdf",
year = "2014",
}