Friedman, J., & Dicks, W. (2015). Sheaves on graphs, their homological invariants, and a proof of the Hanna Neumann conjecture. American Mathematical Society.
Chicago Style (17th ed.) CitationFriedman, Joel, and Warren Dicks. Sheaves on Graphs, Their Homological Invariants, and a Proof of the Hanna Neumann Conjecture. Providence, Rhode Island: American Mathematical Society, 2015.
MLA (9th ed.) CitationFriedman, Joel, and Warren Dicks. Sheaves on Graphs, Their Homological Invariants, and a Proof of the Hanna Neumann Conjecture. American Mathematical Society, 2015.
Warning: These citations may not always be 100% accurate.