Hello! The plugin unimarc_field_135a.pl does not match the Unimarc format. 135 CODED DATA FIELD: ELECTRONIC RESOURCES (Repeatable) Indicators: blank Subfield codes $a Coded Data for Electronic Resources (Not repeatable) $a/0 Type of electronic resource a = numeric b = computer program(s) c = representational d = text e = bibliographic data f = font g = game h = sound i = interactive multimedia j = online system or service u = unknown v = combination z = other $a/1 Special Material Designation a = cartridge magnetic tape b = computer chip in cartridge c = computer optical disc cartridge f = computer magnetic cassette tape h = magnetic tape for main-frame computers j = computer floppy disk m = computer magneto-optical disk o = computer optical disk r = online systems u = unknown z = other $a/2 Colour a = One colour b = Black-and-white c = Multicoloured g = Grey scale m = Mixed n = Not applicable u = Unknown z = Other $a/3 Dimensions a = 3½ in e = 12 in g = 4¾ in or 12 cm i = 1⅛ x 2⅜ in. j = 3⅞ x 2½ in. n = Not applicable o = 5¼ in u = Unknown v = 8 in. z = Other $a/4 Sound # = No sound (silent) a = Sound on medium u = Unknown $a/5-7 Image Bit Depth 001-999 = Exact bit depth mmm = Multiple (more than one image type) nnn = Not applicable --- = Unknown $a/8 Number of File Formats a = One file format m = Multiple file formats u = Unknown $a/9 Quality Assurance Target(s) a = Absent n = Not applicable p = Present u = Unknown $a/10 Antecedent/Source a = File reproduced from original b = File reproduced from microform c = File reproduced from electronic resource d = File reproduced from an intermediate source other than microform m = Mixed n = Not applicable u = Unknown $a/11 Level of Compression a = Uncompressed b = Lossless d = Lossy m = Mixed u = Unknown $a/12 Reformatting Quality a = Access n = Not applicable p = Preservation r = Replacement u = Unknown https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=28075 Please correct it. Good Luck! Igor A. Sychev Tomsk Polytechnic University https://lib.tpu.ru