S: (n) citation, cite, acknowledgment, credit, reference, mention, quotation (a short note recognizing a source of information or of a quoted passage) "the student's essay failed to list several important citations"; "the acknowledgments are usually printed at the front of a book"; "the article includes mention of similar clinical cases"
S: (n) note, annotation, notation (a comment or instruction (usually added)) "his notes were appended at the end of the article"; "he added a short notation to the address on the envelope"