Swinbanks, David D.; Yoshihisa Shirayama (October 1984). "Burrow stratigraphy in relation to manganese diagenesis in modern deep-sea carbonates". Deep-Sea Research Part A: Oceanographic Research Papers. 31 (10): 1197–1223. Bibcode:1984DSRA...31.1197S. doi:10.1016/0198-0149(84)90058-x.
Kotake, Nobuhiro (1991). "Packing process for the filling material in Chondrites". Ichnos: An International Journal for Plant and Animal Traces. 1 (4): 277–285. Bibcode:1991Ichno...1..277K. doi:10.1080/10420949109386362.
Swinbanks, David D.; Yoshihisa Shirayama (October 1984). "Burrow stratigraphy in relation to manganese diagenesis in modern deep-sea carbonates". Deep-Sea Research Part A: Oceanographic Research Papers. 31 (10): 1197–1223. Bibcode:1984DSRA...31.1197S. doi:10.1016/0198-0149(84)90058-x.
Kotake, Nobuhiro (1991). "Packing process for the filling material in Chondrites". Ichnos: An International Journal for Plant and Animal Traces. 1 (4): 277–285. Bibcode:1991Ichno...1..277K. doi:10.1080/10420949109386362.