@InProceedings{GroDor04:ppsn, author = {R.~Gro{\ss} and M.~Dorigo}, title = {Group Transport of an Object to a Target that Only Some Group Members May Sense}, booktitle = {Parallel Problem Solving from Nature -- 8th International Conference (PPSN VIII)}, pages = {852--861}, year = 2004, volume = 3242, series = {Lecture Notes in Computer Science}, publisher = {Springer Verlag, Berlin, Germany} }