Jian, L. (1993). The temporal variability of free-living nematodes in a brakish tidal flat of the Westerschelde with emphasis on the use of an ecological model. PhD Thesis. University of Gent: Gent. , more
Jian, L. (1989). The study in the spatial distribution of meiobenthos in the Voordelta (the Southern Bight of the North Sea). MSc Thesis. VUB: Yerseke. 77 pp., more
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