] . 2003. Changes in amount of bacteria during gut passage of leaf litter and during coprophagy in three species of Bibionidae (Diptera) larvae. Folia Microbiologica 48: 535-542.
. 2000. Natural abundance of C-13 in leaf litter as related to feeding activity of soil invertebrates and microbial mineralisation. Soil Biology & Biochemistry 32: 1793–1797.