@misc{wendt_computeraided_analysis_1990, 
author={Wendt, K., Larink, O.},
title={Computer-aided analysis of earthworm burrows from sectioned soil columns},
year={1990},
howpublished = {journal article},
note = {Wendt, K.; Larink, O.: Computer-aided analysis of earthworm burrows from sectioned soil columns. Pedobiologia. 1990. vol. 34, 221-225.}}