@ARTICLE{
author={Marjanovic Milosav M,Kadelburg Zoran L},
year={2020},
title={A Reconsideration Of: "Number Systems Characterized by Their Operative Properties"},
journal={TEACHING OF MATHEMATICS},
volume={23},
number={2},
pages={81-89},
document_type={Article},
} 

@ARTICLE{
author={Marjanovic Milosav M},
year={2019},
title={Generalized Associative and Commutative Laws},
journal={TEACHING OF MATHEMATICS},
volume={22},
number={2},
pages={71-76},
document_type={Article},
} 

@ARTICLE{
author={Marjanovic Milosav M,Kadelburg Zoran L},
year={2019},
title={Number Systems Characterized by Their Operative Properties},
journal={TEACHING OF MATHEMATICS},
volume={22},
number={2},
pages={43-48},
document_type={Article},
}