Does ‘Merging DEMO Models' Satisfy the Associative Law?. - Tetsuya Suga; Junichi Iijima (KEOD, 2015)

Separation of Modeling Principles and Design Principles in Enterprise Engineering. - Tetsuya Suga; Peter De Bruyn; Philip Huysmans; Jan Verelst; Herwig Mannaert (PoEM, 2016)

Formal Specification of DEMO Process Model and Its Submodel - Towards Algebra of DEMO Models. - Tetsuya Suga; Junichi Iijima (EEWC, 2017)

Algebra for Enterprise Ontology: towards analysis and synthesis of enterprise models. - Tetsuya Suga; Junichi Iijima (Enterp. Inf. Syst., 2018)