16039 Gisle Aas: PerlGuts illustrated. Internet ca. 2000, 23p. Very useful and well organized. 16037 Thomas Fischbacher: Perl-Kurs. Internet ca. 2000, ca. 200p. Think- and beautiful. The last chapter contains a good (though not too long) tutorial on XS and SWIG. 16038 Andreas Geissel: [C in Perl.] Internet 1999, ca. 12p. 13562 Farid Hajji: Perl. Addison-Wesley 2000, 1150p. 14237 Brian Ingerson: Extending Perl with inline.pm. Perl Journal 19 (2000), 30-38. Linking Perl and C. 15808 Brian Ingerson: Pathologically polluting Perl Internet 2001, 7p. The wonderful Inline module described by its author. 15825 Tim Jenness/Simon Cozens: Extending and embedding Perl. Manning 2003, 360p. $32. 15807 man h2xs. 5p. 15803 man perlapi. 43p. 15805 man perlguts. 37p. 15802 man perlintern. 1p. 15804 man perlxs. 36p. 15806 man perlxstut. 21p. 16032 Luca Ranieri: Creazione di librerie in C per la programmazione in Perl con XSUB. Tesi, Ferrara 2003. 13936 Larry Wall/Tom Christiansen/Jon Orwant: Programming Perl. 3rd edition. O'Reilly 2000, 1070p. DM 99.