@article {Hunt2019,
	title = {Testing the limits of pheromone stigmergy in high-density robot swarms},
	journal = {Royal Society Open Science},
	volume = {6},
	year = {2019},
	pages = {190225},
	doi = {10.1098/rsos.190225},
	author = {Edmund R Hunt and Simon Jones and Sabine Hauert}
}
