This is makeindex, version 2.15 [TeX Live 2018] (kpathsea + Thai support). Scanning input file citati.idx....done (4 entries accepted, 0 rejected). Sorting entries....done (10 comparisons). Generating output file citati.ind....done (11 lines written, 0 warnings). Output written in citati.ind. Transcript written in citati.ilg.