@InProceedings{Brandt2018tight,
	author=	{Sebastian Brandt and Jara Uitto and Roger Wattenhofer},
	title=	{{A Tight Lower Bound for Semi-Synchronous Collaborative Grid Exploration}},
	booktitle=	{{32nd International Symposium on Distributed Computing (DISC), New Orleans, Louisiana}},
	month=	{October},
	year=	{2018},
}