1. Effect of Natural Aging on Wood;Kranitz,2014
2. Studies on the durability of wood I, mechanical properties of old timbers;Kohara;Bull. Kyoto Prefect. Univ.,1952
3. Studies on the permanence of wood V, shrinkage and swelling of old timbers about 300–1300years ago (in Japanese);Kohara;Bull. Kyoto Prefect. Univ.,1953
4. Studies on the durability of wood III: mechanical properties of old timbers;Kohara;Sci. Rep. Saikyo Univ.,1953
5. Studies on the permanence of wood VI, the changes of mechanical properties of old timbers (in Japanese);Kohara;Bull. Kyoto Prefect. Univ.,1954