@article{10_4064_cm109_2_3,
     author = {Martin Herschend},
     title = {Galois coverings and the {Clebsch{\textendash}Gordan} problem
for quiver representations},
     journal = {Colloquium Mathematicum},
     pages = {193--215},
     publisher = {mathdoc},
     volume = {109},
     number = {2},
     year = {2007},
     doi = {10.4064/cm109-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm109-2-3/}
}