Route Guardian: Constructing Secure Routing Paths in Software-Defined Networking Towards Connecting Discrete Mathematics and Software Engineering Software Project Management Approaches for Global Software Development: A Systematic Mapping Study Software usage and citation in the field of Library and Information Science in China Hybrid Routing by Joint Optimization of Per-Flow Routing and Tag-Based Routing in Software-Defined Networks An Architecture for Software Engineering Gamification 5Ws of Green and Sustainable Software Secure Transmission Scheme for Parallel Relay Channels Based on Polar Coding Software System Evolution Analysis Method Based on Algebraic Topology Evolutionary Cryptography Theory-Based Generating Method for Secure ECs