[MSDN Library June 1998] Horizontal Strip Running Across the Screen (21.1689095928226%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Windows 95.x Retail Product
[MSDN Library June 1998] Horizontal Mouse Position in CGA and MCGA Modes (21.0760355637784%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Microsoft Mouse Products