@incollection{Berkovic09,
author = {Ivana Berkovic and Biljana Radulovic and Petar Hotomski},
title = {Extensions of Deductive Concept in Logic Programming and Some Applications},
booktitle = {Engineering the Computer Science and IT},
publisher = {IntechOpen},
address = {Rijeka},
year = {2009},
editor = {Safeeullah Soomro},
chapter = {1},
doi = {10.5772/7772},
url = {https://doi.org/10.5772/7772}
}