ASTRO-K: Finding Top-k Sufficiently Distinct Indoor-Outdoor Paths. - Vasilis Ethan Sarris; Constantinos Costa; Panos K. Chrysanthis (MDM, 2022)

Recommending the Least Congested Indoor-Outdoor Paths without Ignoring Time. - Vasilis Ethan Sarris; Panos K. Chrysanthis; Constantinos Costa (SSTD, 2023)

GIO.G: A Generator for Indoor-Outdoor Graphs to Simulate and Analyze Urban Environments. - Vasilis Ethan Sarris; Connor P. Sweeney; Sean M. Linton; Brian T. Nixon; Panos K. Chrysanthis; Constantinos Costa (MDM, 2024)