@misc{2018-collection-gcc,
 day = {23},
 kind = {collection},
 month = apr,
 note = {rev 5dr6FHFMwH9YG3eYvnoyeWXuNJirz7},
 title = {gcc},
 version = {rev 5dr6FHFMwH9YG3eYvnoyeWXuNJirz7},
 year = {2018}
}