1. American National Standard for powered log splitters — safety specifications;ANSI B71.7,1985
2. Production of chopped wood;Atzigen;Schweizer Landtechnik,1988
3. British Standard Code Practice for Machinery,1988
4. Combined machines for preparing fuelwood (cutter-splitters);Centre Technique du Bois et de l'Ameublement;Courrier de l'exploitant et du scieur 4/84,1984