Transparent Complexity by Goals. - Vytautas Cyras; Friedrich Lachmayer (EGOV, 2008)

Das Goldene Zeitalter der Rechtsinformatik in den Siebzigerjahren: Erinnerungen aus österreichischer Sicht. - Friedrich Lachmayer (Informatik in Recht und Verwaltung, 2009)

Technical Rules and Legal Rules in Online Virtual Worlds. - Vytautas Cyras; Friedrich Lachmayer (Eur. J. Law Technol., 2010)

Compliance and Software Transparency for the Design of Legal Machines. - Vytautas Cyras; Friedrich Lachmayer (DB&IS, 2014)

Logic Oriented Methods for Structuring in the Context of Lawmaking. - Vytautas Cyras; Friedrich Lachmayer (Logic in the Theory and Practice of Lawmaking, 2015)

Structural Legal Visualization. - Vytautas Cyras; Friedrich Lachmayer; Kristina Lapin (Informatica, 2015)

Views to Legal Information Systems and Legal Sublevels. - Vytautas Cyras; Friedrich Lachmayer; Erich Schweighofer (ICIST, 2016)

Formalising Taboo as a Prohibition on Informing. - Vytautas Cyras; Friedrich Lachmayer (Doctoral Consortium/Forum@DB&IS, 2018)

Visualization of Legal Informatics. - Friedrich Lachmayer; Vytautas Cyras (JURIX, 2021)