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Drewes Frank; Engelfriet Joost: Context-free tree grammars are as powerful as context-free jungle grammars. In: Acta cybernetica, (22) 2. pp. 373-392. (2015)
Engelfriet Joost; Hoogeboom Hendrik Jan; Van Best Jan-Pascal: Trips on trees. In: Acta cybernetica, (14) 1. pp. 51-64. (1999)