this needs a line break before :ref:

Also, the referencenames (`book-security-voters-changng-the-access-dicision-strategy` and `components-security-authorization-access-decision-manager`) do not exists. I would also prefer to use shorter names, e.g. `security-voters-change-strategy` and `components-security-access-decision-manager`. For more info about references: https://gist.github.com/WouterJ/5276618