Zavadskas, Edmundas Kazimieras, Artūras Kaklauskas, and Tatjana Vilutienė. 2009. “Multicriteria Evaluation of Apartment Blocks Maintenance Contractors: Lithuanian Case Study”. International Journal of Strategic Property Management 13 (4):319-38. https://doi.org/10.3846/1648-715X.2009.13.319-338.