K. R Ludwig

• ISOPLOT
• ISOPLOT for MS-DOS
• ISOPLOT version 2
• ISOPLOT200
• PBDAT for MS-DOS
• PBDAT200, a computer program for processing raw Pb-U-Th isotope data
• Plotting and regression programs for isotope geochemists, for use with HP-86/87 microcomputers
• Program list of ANALYST
• UISO: a program for calculation of p230sTh-p234sU-p238sU isochron ages
• User's manual for ANALYST