@article{BMMS_2006_29_1_a7,
     author = {AR. Meenakshi and D. Krishnaswamy},
     title = {Product of {Range} {Symmetric} {Block} {Matrices} in {Minkowski} {Space}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2006},
     volume = {29},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2006_29_1_a7/}
}