Philipp Hertel, Toniann Pitassi. Black-White Pebbling is PSPACE-Complete. Electronic Colloquium on Computational Complexity (ECCC), 14(044), 2007. [doi]
@article{HertelP07:0, title = {Black-White Pebbling is PSPACE-Complete}, author = {Philipp Hertel and Toniann Pitassi}, year = {2007}, url = {http://eccc.hpi-web.de/eccc-reports/2007/TR07-044/index.html}, tags = {completeness}, researchr = {https://researchr.org/publication/HertelP07%3A0}, cites = {0}, citedby = {0}, journal = {Electronic Colloquium on Computational Complexity (ECCC)}, volume = {14}, number = {044}, }