@ARTICLE{
author={Milanovic Milan,Gasevic Dragan,Giurca Adrian,Wagner Gerd,Lukichev Sergey,Devedzic Vladan B},
year={2009},
title={Model Transformations to Bridge Concrete and Abstract Syntax of Web Rule Languages},
journal={COMPUTER SCIENCE AND INFORMATION SYSTEMS},
volume={6},
number={2},
pages={47-85},
document_type={Article},
} 

@ARTICLE{
author={Milanovic Milan,Gasevic Dragan,Giurca Adrian,Wagner Gerd,Devedzic Vladan B},
year={2009},
title={Bridging concrete and abstract syntaxes in model-driven engineering: a case of rule languages},
journal={SOFTWARE-PRACTICE & EXPERIENCE},
volume={39},
number={16},
pages={1313-1346},
document_type={Article},
}