References

• Representations of quivers, by M. Brion, notes for the summer school in Grenoble (June 2008)
• Lectures on representations of quivers, by W. Crawley-Boevey
• Indecomposable representations of graphs and algebras, by V. Dlab, C. Ringel, Mem. Amer. Math. Soc. 6 (1976), no. 173
• Canonical bases and Hall algebras,, by G. Lusztig, in Representation theories and algebraic geometry (Montréal 1997) NATO ASI Ser., Ser. C, Math. Phys. Sci. 514, 365--399 (1998)
• Lectures on Hall algebras, by O. Schiffmann