Capturing Multi-level Models in a Two-Level Formal Modeling Technique. - João Paulo A. Almeida; Fernando A. Musso; Victorio Albani de Carvalho; Claudenir M. Fonseca; Giancarlo Guizzardi (ER, 2019)

Preserving Multi-level Semantics in Conventional Two-Level Modeling Techniques. - João Paulo A. Almeida; Fernando A. Musso; Victorio Albani de Carvalho; Claudenir M. Fonseca; Giancarlo Guizzardi (MoDELS (Companion), 2019)