Analysis of a Business Environment using Burstiness Parameter: The Case of a Grocery Shop. - Andreas Ahrens; Ojaras Purvinis; Detlef Hartleb; Jelena Zascerinska; Diana Miceviciene (PECCS, 2019)

Analysis of Free Time Intervals between Buyers at Cash Register using Generating Functions. - Detlef Hartleb; Andreas Ahrens; Ojaras Purvinis; Jelena Zascerinska (PECCS, 2020)

Internal and External Factor Analysis in Bottleneck Detection in Shop Sales: The Case of Grocery Shops in Lithuania. - Detlef Hartleb; Andreas Ahrens; Ojaras Purvinis; Jelena Zascerinska; Diana Miceviciene (PECCS, 2020)