@article{oai:kitami-it.repo.nii.ac.jp:00007104,
 author = {T., Sakaguchi and S., Mita and E., Matsui and M., Takahashi and N., Okazaki and A., Tada},
 month = {Dec},
 pages = {129--134},
 title = {Oligomerization of Ethene over Several Catalyst Beds Consisting of Both Ni/SiO2･Al2O3 and BPO4},
 volume = {14},
 year = {2002}
}