Search (3 results, page 1 of 1)

  • × author_ss:"Jahn, N."
  • × year_i:[2020 TO 2030}
  1. Jahn, N.; Matthias, L.; Laakso, M.: Toward transparency of hybrid open access through publisher-provided metadata : an article-level study of Elsevier (2022) 0.00 
    0.0013987164 = product of:
  0.0027974327 = sum of:
    0.0027974327 = product of:
      0.0055948654 = sum of:
        0.0055948654 = weight(_text_:e in 448) [ClassicSimilarity], result of:
          0.0055948654 = score(doc=448,freq=2.0), product of:
            0.07046056 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.049020473 = queryNorm
            0.07940422 = fieldWeight in 448, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=448)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e
  2. Hobert, A.; Jahn, N.; Mayr, P.; Schmidt, B.; Taubert, N.: Open access uptake in Germany 2010-2018 : adoption in a diverse research landscape (2021) 0.00 
    0.0011189731 = product of:
  0.0022379463 = sum of:
    0.0022379463 = product of:
      0.0044758925 = sum of:
        0.0044758925 = weight(_text_:e in 250) [ClassicSimilarity], result of:
          0.0044758925 = score(doc=250,freq=2.0), product of:
            0.07046056 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.049020473 = queryNorm
            0.063523374 = fieldWeight in 250, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03125 = fieldNorm(doc=250)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e
  3. Laakso, M.; Matthias, L.; Jahn, N.: Open is not forever : a study of vanished open access journals (2021) 0.00 
    0.0011189731 = product of:
  0.0022379463 = sum of:
    0.0022379463 = product of:
      0.0044758925 = sum of:
        0.0044758925 = weight(_text_:e in 333) [ClassicSimilarity], result of:
          0.0044758925 = score(doc=333,freq=2.0), product of:
            0.07046056 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.049020473 = queryNorm
            0.063523374 = fieldWeight in 333, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03125 = fieldNorm(doc=333)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e

Authors

Types