@misc{2018-library-png,
 day = {24},
 kind = {library},
 month = apr,
 note = {rev 5dt2q2dD4PPfvpcKzoLsro6L685qKY},
 title = {png},
 version = {rev 5dt2q2dD4PPfvpcKzoLsro6L685qKY},
 year = {2018}
}