1. Aertsens, M., Dierckx, A., Moors, H., De Canniere, P. and Maes, N., 2010, Vertical distribution of H14CO3– Transport Parameters in Boom Clay in the Mol-1 Borehole(Mol, Belgium) and Comparison with Data from Independent Measurements. External Report SCK·CEN-ER-66, 30p.
2. 赤崎広志・濱田真理, 2016, 宮崎県日南海岸に分布する宮崎層群のコンクリーションについて.宮崎県総合博物館調査報告書.75–92. [Akazaki, H. and Hamada, M., 2016, Concretions observed in the Miyazaki Group in Nichinan Coast, Miyazaki Prefecture, Japan. Compr. Rep. Miyazaki Pref. Mus. Nat. Hist., 75–92.]
3. Allison, P. and Pye, K., 1994, Early diagenetic mineralization and fossil preservation in modern carbonate concretions. PALAIOS, 9, 561–575.
4. Astin, T. R., 1986, Septarian crack formation in carbonate concretions from shales and mudstones. Clay Miner., 21, 617–631.
5. Astin, T. R. and Scotchman, I. C., 1988, The diagenetic history of some septarian concretions from the Kimmeridge Clay, England. Sedimentology, 35, 349–368.