Search (2 results, page 1 of 1)

  • × author_ss:"Helgerson, L.W."
  • × year_i:[1980 TO 1990}
  1. Helgerson, L.W.: CD-ROM search and retrieval software : the requirements and the realities (1986) 1.00 
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  2. Bills, L.G.; Helgerson, L.W.: User interfaces for CD-ROM PACs (1988) 1.00 
    1.0 = *:*, product of:
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