mmra refs added

Signed-off-by: Katrin Berkenbusch <katrin@dragonfly.co.nz>
Merge branch 'master' of github.com:dragonfly-science/bibliography
odontocete refs

Signed-off-by: Katrin Berkenbusch <katrin@dragonfly.co.nz>
mmra - refs added

Signed-off-by: Katrin Berkenbusch <katrin@dragonfly.co.nz>