TY  - BOOK
AU  - Ambos-spies, Klaus, Ed.
AU  - Lowe, Benedikt, Ed.
AU  - Merkle, Wolfgang, Ed.
TI  - Mathematical theory and computational practice: 5th conference on computability in Europe, CiE2009, Heldelberg, Germany, july 19-24, 2009 proceedings
SN  - 9783642030727
CY  - Berlin
ER  -