Category:未解決問題
経済学上の未解決問題
List of unsolved problems in economics
哲学上の未解決問題
List of philosophical problems
Template:未解決問題
Template:Unsolved problems情報理論上の未解決問題
List of unsolved problems in information theory
医学上の未解決問題
Unsolved problems in medicine
地球科学上の未解決問題
List of unsolved problems in geoscience
懸賞金問題
Inducement prize contest未解決問題
Lists of unsolved problems
天文学上の未解決問題
List of unsolved problems in astronomy
統計学上の未解決問題
List of unsolved problems in statistics
パトムスキー・クレーター
Patomskiy crater▼-2 trends