Numerical optimization with neuroevolution. - Brian Greer; Henri Hakonen; Risto Lahdelma; Risto Miikkulainen (IEEE Congress on Evolutionary Computation, 2002)

An efficient linear programming algorithm for combined heat and power production. - Risto Lahdelma; Henri Hakonen (Eur. J. Oper. Res., 2003)

An efficient linear model and optimisation algorithm for multi-site combined heat and power production. - Aiying Rong; Henri Hakonen; Risto Lahdelma (Eur. J. Oper. Res., 2006)

A variant of the dynamic programming algorithm for unit commitment of combined heat and power systems. - Aiying Rong; Henri Hakonen; Risto Lahdelma (Eur. J. Oper. Res., 2008)