Orientation of agnostid shields in Alum Shale (Upper Cambrian): Implications for the depositional environmentJohan Eklöf, Adolf Seilacher, Jens Rydell et al.|GFF|1999Cited by 23
Trace fossil associations in the Swedish Mickwitzia sandstone (Lower Cambrian): Did trilobites really hunt for worms?Jens Rydell, Adolf Seilacher, Jemima Hammarlund|GFF|2001Cited by 18