@article{BMMS_2009_32_3_a10,
     author = {A. Dehghan Nezhad and B. Davvaz},
     title = {An {Introduction} to the {Theory} of {Hv-Semilattices}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2009},
     volume = {32},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2009_32_3_a10/}
}