屋上の老人たち

From Author Wars - https://authorwars.com/books/wu-shang-nolao-ren-tachi-2356013.html

Overview:

Title: 屋上の老人たち
Author: 村田基
Year: 1987
Type: Short Fiction

Editions/Publications:

Unknown. S-Fマガジン 1987年01月号, #347 (Unknown, 村田基, 早川書房, Trade Paperback, MAGAZINE)