Studovány jsou příčiny nízké účinnosti a faktory odpovědné za selhání. Rozebrány jsou možnosti nápravy. (cs)
Reasons of low effectiveness are studied and factors responsible for failures are clarified. The possibilities how to improve the effectiveness are discussed.
Reasons of low effectiveness are studied and factors responsible for failures are clarified. The possibilities how to improve the effectiveness are discussed. (en)