Year: 2025
Type: article
Abstract: は はじ じめ めに に 我が国の生産年齢人口 (15～64 歳) は， 1995 年の 8,726 万人(総人口比 69.5％)をピークに減少へと転じ，2024
DOI: 10.2472/jsms.74.707
Author: Taizo KOBAYASHI
Institution: Ritsumeikan University
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4416373980
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