Documentation as a software capability indicatorLepasaar, Marion; Varkoi, T.; Jaakkola, HannuProceedings PICMET'01 : Portland, Oregon, USA, 2001 : book of summaries. Vol. 12001 / p. 436 https://www.researchgate.net/publication/251797105_Documentation_as_a_software_process_capability_indicator

Key success factors of a regional software process improvement programLepasaar, Marion; Kalja, Ahto; Varkoi, T.; Jaakkola, HannuProceedings PICMET'01 : Portland, Oregon, USA, 2001 : book of summaries. Vol. 12001 / p. 432 https://ieeexplore.ieee.org/document/952341

Structural comparison of SPICE and continuous CMMILepasaar, Marion; Mäkinen, T.; Varkoi, T.Proceedings of SPICE 2002, Venice, Italy2002 / p. 223-234