More info can be found here (straight from the source...) https://www.bell-labs.com/usr/dmr/www/chist.html https://www.bell-labs.com/usr/dmr/www/chist.html ht

More info can be found here (straight from the source...) https://www.bell-labs.com/usr/dmr/www/chist.html https://www.bell-labs.com/usr/dmr/www/chist.html https://www.bell-labs.com/usr/dmr/www/primevalC.html https://www.bell-labs.com/usr/dmr/www/primevalC.html