Energy trade-offs among content delivery architectures. - Anja Feldmann; Andreas Gladisch; Mario Kind; Christoph Lange 004; Georgios Smaragdakis; Fritz-Joachim Westphal (CTTE, 2010)

Limits of Energy Efficiency Improvements by Load-Adaptive Telecommunication Network Operation. - Christoph Lange 004; Andreas Gladisch (CTTE, 2011)

Opportunities for next-generation optical access. - Dirk Breuer; Frank Geilhardt; Ralf Hülsermann; Mario Kind; Christoph Lange 004; Thomas Monath; Erik Weis (IEEE Commun. Mag., 2011)

Should ISPs adopt hybrid CDN-P2P in IP-over-WDM networks: An energy-efficiency perspective? - Uttam Mandal; Christoph Lange 004; Andreas Gladisch; Biswanath Mukherjee (IEEE ANTS, 2012)

Energy Efficiency in Extensive IP-Over-WDM Networks with Protection. - Andreas Betker; Dirk Kosiankowski; Christoph Lange 004; Frank Pfeuffer; Christian Raack; Axel Werner (OR, 2012)

An OFDMA-based optical access network architecture exhibiting ultra-high capacity and wireline-wireless convergence. - Konstantinos Kanonakis; Ioannis Tomkos; Heinz-Georg Krimmel; Frank Schaich; Christoph Lange 004; Erik Weis; Juerg Leuthold; Marcus Winter; Sergio Romero; Pandelis Kourtessis; Milos Milosavljevic; Ivan N. Cano; et al. (IEEE Commun. Mag., 2012)

Techno-economic Balance of Load-Adaptive Telecommunication Network Operation for Energy Efficiency Improvements. - Christoph Lange 004; Heiko Lehmann (DEXA Workshops, 2013)

Energy efficiency of load-adaptively operated telecommunication networks. - Christoph Lange 004 (OFC/NFOEC, 2013)

TREND towards more energy-efficient optical networks. - Esther Le Rouzic; Edoardo Bonetto; Luca Chiaraviglio; Frédéric Giroire; Filip Idzikowski; Felipe Jiménez 001; Christoph Lange 004; Julio Montalvo; Francesco Musumeci 001; Issam Tahiri; Alessandro Valenti; Ward Van Heddeghem; et al. (ONDM, 2013)

Energy-efficient networking for content distribution over telecom network infrastructure. - Uttam Mandal; Pulak Chowdhury; Christoph Lange 004; Andreas Gladisch; Biswanath Mukherjee (Opt. Switch. Netw., 2013)

Effect of load-proportional systems on the energy efficiency of fixed telecom operator networks. - Christoph Lange 004; Dirk Kosiankowski; Andreas Gladisch (ECOC, 2014)

Analysis of energy consumption in carrier networks. - Christoph Lange 004; Dirk Kosiankowski; Dirk von Hugo; Andreas Gladisch (ONDM, 2014)

Comprehensive Topology and Traffic Model of a Nationwide Telecommunication Network. - Andreas Betker; Inken Gamrath; Dirk Kosiankowski; Christoph Lange 004; Heiko Lehmann; Frank Pfeuffer; Felix Simon; Axel Werner (JOCN, 2014)

Adopting Hybrid CDN-P2P in IP-Over-WDM Networks: An Energy-Efficiency Perspective. - Uttam Mandal; M. Farhan Habib; Shuqiang Zhang; Christoph Lange 004; Andreas Gladisch; Biswanath Mukherjee (JOCN, 2014)

Use-case based cost and energy efficiency analysis of virtualization concepts in operator networks. - Christoph Lange 004; Dirk Kosiankowski; Andreas Gladisch (ECOC, 2015)

Analysis of the energy consumption in telecom operator networks. - Christoph Lange 004; Dirk Kosiankowski; Dirk von Hugo; Andreas Gladisch (Photonic Netw. Commun., 2015)

Access Network Economics: A Total-Cost-of-Ownership Perspective. - Christoph Lange 004; Dirk Kosiankowski; Sandro Kraus; Andreas Gladisch (OFC, 2018)