Not Seeing the Parse Trees from the Parse Forest of a Context-Free Parallel Communicating Grammar System. - Stefan D. Bruda; Mary Sarah Ruth Wilkin (ISPDC, 2013)

Limitations of Coverability Trees for Context-Free Parallel Communicating Grammar Systems and Why these Grammar Systems are not Linear Space. - Stefan D. Bruda; Mary Sarah Ruth Wilkin (Parallel Process. Lett., 2016)