%0 Journal Article %T Open trails in digraphs %A Sylwia Cichacz %A Agnieszka G£¿rlich %J Opuscula Mathematica %D 2011 %I AGH University of Science and Technology %X It has been shown in [S. Cichacz, A. G rlich, Decomposition of complete bipartite graphs into open trails, Preprint MD 022, (2006)] that any bipartite graph $K_{a,b}$, is decomposable into open trails of prescribed even lengths. In this article we consider the corresponding question for directed graphs. We show that the complete directed graphs $\overleftrightarrow{K_n}$ and $\overleftrightarrow{K_{a,b}}$ are arbitrarily decomposable into directed open trails. %K trail %K graphdecomposition %K bipartite graph %U http://www.opuscula.agh.edu.pl/vol31/4/art/opuscula_math_3139.pdf