@ARTICLE {2917,
author={W. Carnielli  and J. Rasga and C. Sernadas},
doi={10.1093/logcom/exm061},
journal={Journal of Logic and Computation},
title={Preservation of interpolation features by fibring},
year={2008},
month={January},
volume={18},
number={1},
pages={123-151},
ISSN={0955-792X}
}