TY  - RPRT
TI  - Direct Numerical Integration for Multi-loop Integrals
AU  - Becker, S
AU  - Weinzierl, S
PY  - 2013
DO  - 10.1140/epjc/s10052-013-2321-1
UR  - https://www.osti.gov/biblio/1074341
ID  - 1074341
ER  -