G. Böckle, P. Knauber, K. Pohl, and K. Schmid, Software-Produktlinien: Methoden, Einführung und Praxis, 1st editio ed., dpunkt.
@book{Bockle2004,
author = {B{\"{o}}ckle, G{\"{u}}nter and Knauber, Peter and Pohl, Klaus and Schmid, Klaus},
edition = {1st editio},
isbn = {978-3898642576},
pages = {320},
publisher = {dpunkt},
title = {{Software-Produktlinien: Methoden, Einf{\"{u}}hrung und Praxis}},
year = {2004}
}
K. Pohl, G. Böckle, and F. van der Linden, Software Product Line Engineering: Foundations, Principles and Techniques, 3rd editio ed., Springer.
@book{Pohl2005,
author = {Pohl, Klaus and B{\"{o}}ckle, G{\"{u}}nter and van der Linden, Frank},
edition = {3rd editio},
isbn = {978-3540243724},
pages = {467},
publisher = {Springer},
title = {{Software Product Line Engineering: Foundations, Principles and Techniques}},
year = {2005}
}
P. Clements and L. Northrop, Software Product Lines: Practices and Patterns: Practices and Patterns, Addison Wesley.
@book{Clements2015,
author = {Clements, Paul and Northrop, Linda},
isbn = {978-0134424088},
pages = {563},
publisher = {Addison Wesley},
title = {{Software Product Lines: Practices and Patterns: Practices and Patterns}},
year = {2015}