url(r'^polki/(?P<shelf>[a-zA-Z0-9-]+)/(?P<book>[a-zA-Z0-9-0-]+)/usun$', 'remove_from_shelf', name='remove_from_shelf'),
url(r'^polki/$', 'user_shelves', name='user_shelves'),
url(r'^polki/(?P<slug>[a-zA-Z0-9-]+)/usun/$', 'delete_shelf', name='delete_shelf'),
url(r'^polki/(?P<shelf>[a-zA-Z0-9-]+)/(?P<book>[a-zA-Z0-9-0-]+)/usun$', 'remove_from_shelf', name='remove_from_shelf'),
url(r'^polki/$', 'user_shelves', name='user_shelves'),
url(r'^polki/(?P<slug>[a-zA-Z0-9-]+)/usun/$', 'delete_shelf', name='delete_shelf'),