„… Planning Sciences 37 (2): 125-139. KARAGIANNIS, G. (2015): On structural and average technical efficiency …” „… shifts in the aggregate efficiency. Based on the results of decomposition of the covariance term and …” „… regression-based methods, which, in the earlier literature, showed expected levels of efficiency for a given farm …”

„… , communication, material,energy, and staff are connected to a module via defined interfaces. Within planning …” „… : „Each process stepand physical and chemical operations are based on standardized and …” „… knowledge-basedsystem, reasoning and analysing on chemical processes. The knowledge consists of modelsas well as …”