@misc{oai:tsukuba.repo.nii.ac.jp:00011159,
 author = {El-Hasan, Tayel},
 month = {},
 note = {1998, 【要旨】},
 title = {Geology, mineralogy, and geochemistry of the Cambrian manganese deposits of central Wadi Araba region, Jordan},
 year = {1999}
}