In a case set forth in one of the following items, the source of the work must be clearly indicated in the manner and to the extent considered reasonable, commensurate with the circumstances of its reproduction or exploitation:
a work is reproduced pursuant to the provisions of Article 32; Article 33, paragraph (1) (including when application mutatis mutandis is provided for pursuant to the provisions of paragraph (4) of that Article); Article 33-2, paragraph (1); Article 33-3, paragraph (1); Article 37, paragraph (1); Article 41-2, paragraph (1); Article 42; Article 42-2, paragraph (1); or Article 47, paragraph (1);
第三十二条、第三十三条第一項（同条第四項において準用する場合を含む。）、第三十三条の二第一項、第三十三条の三第一項、第三十七条第一項、第四十一条の二第一項、第四十二条、第四十二条の二第一項又は第四十七条第一項の規定により著作物を複製する場合
a work is exploited pursuant to the provisions of Article 34, paragraph (1); Article 37, paragraph (3); Article 37-2; Article 39, paragraph (1); Article 40, paragraph (1) or (2); Article 47, paragraph (2) or (3); or Article 47-2;
a work is exploited other than by its reproduction pursuant to the provisions of Article 32 or Article 42, or is exploited pursuant to the provisions of Article 35, paragraph (1); Article 36, paragraph (1); Article 38, paragraph (1); Article 41; Article 41-2, paragraph (2); Article 42-2, paragraph (2); Article 46; or Article 47-5, paragraph (1), and it is common practice to indicate the source.
第三十二条若しくは第四十二条の規定により著作物を複製以外の方法により利用する場合又は第三十五条第一項、第三十六条第一項、第三十八条第一項、第四十一条、第四十一条の二第二項、第四十二条の二第二項、第四十六条若しくは第四十七条の五第一項の規定により著作物を利用する場合において、その出所を明示する慣行があるとき。
In a source indication as referred to in the preceding paragraph, the name of the author that appears on the work must be cited, except if the author's name is clear from the source indication or if the work is anonymous.
If a work is exploited as provided in one of the following items, the source of the original work underlying the derivative work provided for in that item must be indicated pursuant to the provisions of the preceding two paragraphs:
a derivative work created pursuant to the provisions of Article 40, paragraph (1); Article 46; or Article 47-5, paragraph (1) is exploited pursuant to those provisions;
第四十条第一項、第四十六条又は第四十七条の五第一項の規定により創作された二次的著作物をこれらの規定により利用する場合
a derivative work created pursuant to the provisions of Article 47-6, paragraph (1) is exploited based on the application of the provisions set forth in paragraph (2) of that Article pursuant to the items of paragraph (1) of that Article.
第四十七条の六第一項の規定により創作された二次的著作物を同条第二項の規定の適用を受けて同条第一項各号に掲げる規定により利用する場合
Read this with the articles around it