Peter Lee 0001 Frank Pfenning Gene Rollins William L. Scherlis The Ergo Support System: An Integrated Set of Tools for Prototyping Integrated Environments. 25-34 1988 conf/sde/1988 Software Development Environments (SDE) db/conf/sde/sde88.html#LeePRS88 https://doi.org/10.1145/64135.65006 https://doi.org/10.1145/64137.65006 https://doi.org/10.1145/64140.65006