@article{oai:tsukuba.repo.nii.ac.jp:00015930,
 author = {Eda, Katsuya},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {157--159},
 title = {A note on the hereditary properties in the product space},
 volume = {4},
 year = {1980}
}