The attached bib file is not correctly converted to a TeXmacs tree by the 'parse-bib' scheme procedure.  It contains the problematic entry

@Article{Oikawa1960,
  author    = {K\F4taro Oikawa},
  title     = {Sario's Lemma on Harmonic Functions},
  journal   = {Proceedings of the American Mathematical Society},
  year      = {1960},
  volume    = {11},
  number    = {3},
  pages     = {425-428},
  owner     = {crow},
  timestamp = {2008.09.09},
}

As a result 'parse-bib' returns a tree which contains, for example as first entry

(bib-entry "article" "singular-diffusion" (document (bib-field "title" "Two Singular Diffusion Problems") (bib-field "author" "William Feller") (bib-field "journal" "The Annals of Mathematics") (bib-field "year" "1951") (bib-field "month" "jul") (bib-field "number" "1") (bib-field "pages" "173--182") (bib-field "volume" "54") (bib-field "copyright" "Copyright 1951 Annals of Mathematics") (bib-field "issn" "0003-486X") (bib-field "jstor_articletype" "Full Length Article") (bib-field "jstor_date" "195107") (bib-field "jstor_formatteddate" "Jul., 1951") (bib-field "language" "EN") (bib-field "publisher" "Annals of Mathematics") (bib-field "series" "2") (bib-field "url" "http://links.jstor.org/sici?sici=0003-486X%28195107%292%3A54%3A1%3C173%3ATSDP%3E2.0.CO%3B2-B")))


while the expected result is

(bib-entry "article" "singular-diffusion" (document (bib-field "title" "Two Singular Diffusion Problems") (bib-field "author" (bib-names (bib-name "William" "" "Feller" ""))) (bib-field "journal" "The Annals of Mathematics") (bib-field "year" "1951") (bib-field "month" "jul") (bib-field "number" "1") (bib-field "pages" (bib-pages "173" "182")) (bib-field "volume" "54") (bib-field "copyright" "Copyright 1951 Annals of Mathematics") (bib-field "issn" "0003-486X") (bib-field "jstor_articletype" "Full Length Article") (bib-field "jstor_date" "195107") (bib-field "jstor_formatteddate" "Jul., 1951") (bib-field "language" "EN") (bib-field "publisher" "Annals of Mathematics") (bib-field "series" "2") (bib-field "url" (slink "http://links.jstor.org/sici?sici=0003-486X%28195107%292%3A54%3A1%3C173%3ATSDP%3E2.0.CO%3B2-B"))))

See the "author" field. As result the compiled bibliography lacks author names, since the function 'bib-format-author' cannot deal with the unexpected presence of the string

(bib-field "author" "William Feller")

 instead of

(bib-field "author" (bib-names (bib-name "William" "" "Feller" ""))

I haven't yet investigated why this happens. Probably we should either fail only in the wrong entry and not mangle all the others.