APA (7th ed.) Citation

Liu, L., Zlatanova, S., & Xie, R. Pedestrian Path Choice in Crowded Indoor Environments. Copernicus Publications.

Chicago Style (17th ed.) Citation

Liu, L., S. Zlatanova, and R. Xie. Pedestrian Path Choice in Crowded Indoor Environments. Copernicus Publications.

MLA (9th ed.) Citation

Liu, L., et al. Pedestrian Path Choice in Crowded Indoor Environments. Copernicus Publications.

Warning: These citations may not always be 100% accurate.