TY - JOUR
AU - Kai Petersen
AU - Cigdem Gencel
AU - Negin Asghari
AU - Stefanie Betz
BT - Empirical Software Engineering
M1 - 4
PB - Springer US
PY - 2015
SP - 968
EP - 1005
T2 - Empirical Software Engineering
TI - An elicitation instrument for operationalising GQM+ Strategies (GQM+ S-EI)
VL - 20
ER -