SC library 2006 CIGRE General Meeting (C5 Technical Session) JWG C2/C5-5 - Interfaces Between System Operators, Market Operators and other Market Actors 2005 2nd IEEE PES / CIGRE International Symposium (Congestion Management in a Market Environment) TF C5-2.1 - Classification of Electricity Market Models Worldwide TF C5-2.2 - Risks and Risk Management for Competitive Electricity Markets WG C5-4 - Practices Related to Internal and Cross Border Congestion Management JWG C2/C5-5 - Congestion Management: The System Operators' Challenge to Balance Transfer Capacity with an Acceptable Security Level 2004 CIGRE General Meeting (C5 Technical Session) JWG C2/C5-5 - Electric System Operating Standards - A Search for Justification 2003 1st IEEE PES / CIGRE International Symposium (Quality and Security of Electric Power Delivery Systems) JWG C2/C5-5 Frequency Control Practices in Market Environments 2003 Shanghai (presented 2004 Ljubjana) JWG C2/C5-5 - Cross Border Congestion Management - International Examples and Comparison