Purchase Options

Returning visitor?  I already have a prepaid plan or subscription to the archives. Log In

The infra-red excitation of fluorescent crystal caf2-u3& (Infrared excitation of calcium fluoride crystals containing uranium and fluorescent emission)
Publication:The infra-red excitation of fluorescent crystal caf2-u3& (Infrared excitation of calcium fluoride crystals containing uranium and fluorescent emission)
Author:Cho, H-N; Lin, K-h; Liu, S-H; Tsui, F-K; Wang, F-K
Date:May 1964

   Description Price
Washington Post 25 - Pack (25 Articles) $29.95
Washington Post 10-Pack (10 Articles) $19.95
Washington Post 4 Pack (4 Articles) $10.95
Washington Post Document Purchase $3.95


Each article is available to you for 90 days from the date that you first view it.

  • Even Better Value: $29.95 3 Month Pass
    Buy a 3 Month Pass to the Washington Post online archive for only $29.95. Select up to 25 articles while your 3 month pass is active.

  • Better Value: $19.95 Month Pass
    Buy a Month Pass to the Washington Post online archive for only $19.95. Select up to 10 articles while your month pass is active.

  • Great Value: $10.95 Week Pass
    Buy a Week Pass to the Washington Post online archive for only $10.95. Select up to 4 articles while your week pass is active.

  • Good Value: $3.95 Per Article
    You can purchase Washington Post articles for just $3.95 each.Select any purchase icon on the Search Results or Free Preview page and you'll be taken to the purchase page for that item.

Purchase Icons ( Sample Buy Full Text ):
Purchase documents by picking any of the purchase icons that appear on the Search Results page or on the Free Preview page. Sometimes a document is available in more than one format for display on your screen.
Once you purchase a document in one format (for example, full text), you can view that same document in any other available format (for example, PDF page image) at no extra charge.

What forms of payment are accepted for purchasing articles?
The Washington Post archive honors the following credit cards:

VISA Master Card American Express Discover/Novus

The Terms of Service for this Web site are applicable to your use of the archive. Please read them. Your use of the site indicates your acceptance of these Terms of Service.