Search for: ([Subject and Keywords = age classes] OR [Subject and Keywords = body size] OR [Subject and Keywords = Chitty effect] OR [Subject and Keywords = high mountain habitats] OR [Subject and Keywords = Microtus oeconomus] OR [Subject and Keywords = morphological variability] OR [Subject and Keywords = Norway] OR [Subject and Keywords = population cycles] OR [Subject and Keywords = root] OR [Subject and Keywords = Nornik północny] OR [Subject and Keywords = klasa wiekowa] OR [Subject and Keywords = wielkość ciała] OR [Title = Morphological variability of a root vole population in high mountain habitats, Hardangervidda, South Norway] OR [Creator = Markowski, J.] OR [Creator = Ostbye, E.])