Andreas Birk Pieter Derks Dirk Hamann Jorma Hirvensalo Markku Oivo Erik Rodenbach Rini van Solingen Jorma Taramaa Applications of Measurement in Product-Focused Process Improvement: A Comparative Industrial Case Study. 105-108 1998 conf/metrics/1998 IEEE METRICS http://csdl.computer.org/comp/proceedings/metrics/1998/9201/00/92010105abs.htm db/conf/metrics/metrics1998.html#BirkDHHORST98