Casparie, W.A. (1987). Bog trackways in the Netherlands. Palaeohistoria: Acta et communicationes instituti bio-archaeologici universitatis Groninganae 29: 35-65
In: Palaeohistoria: Acta et communicationes instituti bio-archaeologici universitatis Groninganae. A.A. Balkema: Rotterdam. , more
