TY  - BOOK
AU  - Grandis,Marco
TI  - Directed Algebraic Topology: Models of Non-Reversible Worlds 
SN  - 9780511657474 (ebook)
PY  - 2009///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Algebraic topology
N1  - Includes bibliographical references and index
UR  - http://dx.doi.org/10.1017/CBO9780511657474
ER  -