/usr/ is in libisoburn-dev 1.4.2-4ubuntu1.
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..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libisoburn.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libisoburn-1.pc
/usr/include/
/usr/include/libisoburn/
/usr/include/libisoburn/xorriso.h
/usr/include/libisoburn/libisoburn.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libisoburn-dev/
/usr/share/doc/libisoburn-dev/copyright
/usr/share/doc/libisoburn-dev/TODO
/usr/lib/x86_64-linux-gnu/libisoburn.so
/usr/share/doc/libisoburn-dev/AUTHORS
/usr/share/doc/libisoburn-dev/README.gz
/usr/share/doc/libisoburn-dev/changelog.Debian.gz