Rudi Stouffs Implementation issues of parallel shape grammars. 162-176 2018 32 Artif. Intell. Eng. Des. Anal. Manuf. 2 https://doi.org/10.1017/S0890060417000270 https://www.wikidata.org/entity/Q129853864 db/journals/aiedam/aiedam32.html#Stouffs18