@collection{DasPigTru_j2010, editor = {J{\"u}rgen~Dassow and Giovanni~Pighizzini and Bianca~Truthe}, title = {Special Issue: Selected Papers of the 11th Workshop on Descriptional Complexity of Formal Systems ({M}agdeburg, {G}ermany, {J}uly 6--9, 2009)}, series = jalc, volume = {15}, year = 2010, key = {Dassow Pighizzini Truthe} }