Towards Functional-Structural Analysis of Forest Stands with LIGNUM. - Jari Perttunen; Risto Sievänen; Mika Lehtonen; Eero Nikinmaa (ESM, 2002)

Computational analysis of the effects of light gradients and neighbouring species on foliar nitrogen. - Pekka Kaitaniemi; Anna Lintunen; Risto Sievänen; Jari Perttunen (Ecol. Informatics, 2018)