@article{SEMR_2018_15_a26,
     author = {P. Dimitrov and D. Vakarelov},
     title = {Dynamic contact algebras and quantifier-free logics for space and time},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {1103--1144},
     publisher = {mathdoc},
     volume = {15},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2018_15_a26/}
}