APA (7th ed.) Citation

Liu, Z., Li, B., Wang, J., & Yang, R. Requirements engineering for crossover services: Issues, challenges and research directions. Wiley.

Chicago Style (17th ed.) Citation

Liu, Zhengli, Bing Li, Jian Wang, and Rong Yang. Requirements Engineering for Crossover Services: Issues, Challenges and Research Directions. Wiley.

MLA (9th ed.) Citation

Liu, Zhengli, et al. Requirements Engineering for Crossover Services: Issues, Challenges and Research Directions. Wiley.