Attention:The NSF Public Access Repository (PAR) system and access will be unavailable from 5:00 PM ET until 8:00 PM ET on Friday, September 11 due to maintenance. We apologize for the inconvenience.


Search for: All records

Creators/Authors contains: "Evans, William J."

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. Free, publicly-accessible full text available December 8, 2026
  2. Free, publicly-accessible full text available December 22, 2026
  3. Free, publicly-accessible full text available November 10, 2026
  4. Free, publicly-accessible full text available February 11, 2027
  5. Free, publicly-accessible full text available September 24, 2026