Measurement of X-ray Beam Quality by the Use of Metal Wall to "Air"-wall Chamber RatiosAdrian H. Dahl1953EN
Flow and Wall-temperature Sensitivity in Parallel Passages for Large Inlet to Exit Density Ratios in Subsonic FlowMeyer. Reshotko1968EN
Ratio Analysis of Financial Statements; an Explanation of a Method of Analysing Financial Statements by the Use of Ratios, by Alexander Wall and Raymond W. Duning.Alexander Wall1928EN