@misc{2019-collection-gcc,
 day = {30},
 kind = {collection},
 month = jul,
 note = {rev 5drwqqssZmejMjPmXUScCYZfUNxF1e},
 title = {gcc},
 version = {rev 5drwqqssZmejMjPmXUScCYZfUNxF1e},
 year = {2019}
}