1. 2019. Balsa GTK library. https://developer.gnome.org/gtk3/stable/GtkCssProvider.html#gtk-css-provider-load-from-path 2019. Balsa GTK library. https://developer.gnome.org/gtk3/stable/GtkCssProvider.html#gtk-css-provider-load-from-path
2. 2019. Byte-UnixBench. https://github.com/kdlucas/byte-unixbench. 2019. Byte-UnixBench. https://github.com/kdlucas/byte-unixbench.
3. 2019. Cairo vs Splash. https://gitlab.freedesktop.org/poppler/poppler/issues/285. 2019. Cairo vs Splash. https://gitlab.freedesktop.org/poppler/poppler/issues/285.
4. 2019. Dtrace for BSDs. http://dtrace.org/blogs/ 2019. Dtrace for BSDs. http://dtrace.org/blogs/
5. 2019. FreeBSD: kernel limits. https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/configtuning-kernel-limits.html. 2019. FreeBSD: kernel limits. https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/configtuning-kernel-limits.html.