00442nas a2200133 4500008004100000245007000041210006900111260001800180490000700198100001800205700002900223700001900252856003700271 2011 eng d00aDealing with midair collisions in dense collective aerial systems0 aDealing with midair collisions in dense collective aerial system cMay/June 20110 v281 aSeverin Leven1 aJean-Christophe Zufferey1 aDario Floreano uhttp://www.csnetwork.eu/node/422