Generated fuzzy subgroup: a modification. - Nusrat Sultana; Naseem Ajmal (Fuzzy Sets Syst., 1999)

Group nearest neighbor queries in the presence of obstacles. - Nusrat Sultana; Tanzima Hashem; Lars Kulik (SIGSPATIAL/GIS, 2014)

Group meetup in the presence of obstacles. - Nusrat Sultana; Tanzima Hashem; Lars Kulik (Inf. Syst., 2016)