ZU PROBLEMEN DES LANGFRISTIGEN LEISTUNGSAUFBAUS VON SKILANGLAEUFERN - Ostrowski, C. (Theorie und Praxis des Leistungssports, 1989)
Keywords: strength; technique; endurance; efficiency; performance capacity; load; performance development; long-term performance build-up; cross-country skiing; GDR; endurance sports; junior sports