@misc{oai:tsukuba.repo.nii.ac.jp:00008434,
author = {Kawamura, Kazuhiro},
month = {},
note = {application/pdf, The concept of span of continua (=compact connected metric spaces) was introduced by A. Lelek in 1964. He posed some problems on continua with zero span. They are related to the characterization problem of arc-like continua among tree-like continua and are important in continua theory. At present, these problems are still open. But, in this thesis, we prove some results conserning these problems., Thesis--University of Tsukuba, D.Sc.(B), no. 670, 1991. 3. 25},
title = {On spans of continua},
year = {1991}
}