message: Standardize references in
diff: # pylint: disable=invalid-name
  """VGG16 model for Keras.
  -Reference paper:
  +Reference:
  - [Very Deep Convolutional Networks for Large-Scale Image Recognition]
  (https://arxiv.org/abs/1409.1556) (ICLR 2015)
  """
  @@ -53,7 +53,7 @@ def VGG16(
  classifier_activation='softmax'):
  """Instantiates the VGG16 model.
  - Reference paper:
  + Reference:
  - [Very Deep Convolutional Networks for Large-Scale Image Recognition](
  https://arxiv.org/abs/1409.1556) (ICLR 2015)
  