On Affine Non-Negative Matrix Factorization. - Hans Laurberg; Lars Kai Hansen (ICASSP (2), 2007)

Structured non-negative matrix factorization with sparsity patterns. - Hans Laurberg; Mikkel N. Schmidt; Mads Græsbøll Christensen; Søren Holdt Jensen (ACSCC, 2008)

Theorems on Positive Data: On the Uniqueness of NMF. - Hans Laurberg; Mads Græsbøll Christensen; Mark D. Plumbley; Lars Kai Hansen; Søren Holdt Jensen (Comput. Intell. Neurosci., 2008)

Nonnegative Matrix Factorization with Gaussian Process Priors. - Mikkel N. Schmidt; Hans Laurberg (Comput. Intell. Neurosci., 2008)