Tamošaitienė, Jolanta, Lina Bartkienė, and Tatjana Vilutienė. 2010. “The New Development Trend of Operational Research in Civil Engineering and Sustainable Development As a Result of Collaboration Between German‐Lithuanian‐Polish Scientific Triangle”. Journal of Business Economics and Management 11 (2):316-40. https://doi.org/10.3846/jbem.2010.16.