Category:未解決問題
Template:未解決問題
Template:Unsolved problems経済学上の未解決問題
List of unsolved problems in economics情報理論上の未解決問題
List of unsolved problems in information theory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統計学上の未解決問題
List of unsolved problems in statistics医学上の未解決問題
Unsolved problems in medicine哲学上の未解決問題
List of philosophical problemsパトムスキー・クレーター
Patomskiy crater天文学上の未解決問題
List of unsolved problems in astronomy未解決問題
Lists of unsolved problems