http://www.doctrine-project.org/projects/phpcr-odm.html
Git clone this repository.
Update the submodules (used for the doctrine theme)
git submodule update --init
Run
./bin/install-dependencies.sh
Run
./bin/generate-docs.sh
It will generate the documentation in PDF format into the build directory of the checkout.
Alternatively, you can go into en/ and type make to see what other formats you can generate.