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  author={Einarsdottir, Johanna and Dockett, Sue and Perry, Bob},
  journal={Early child development and care},
  volume={179},
  number={2},
  pages={217--232},
  year={2009},
  publisher={Taylor \& Francis}
}

@article{steffani2009relationship,
  title={The relationship of drawing, writing, literacy and math in kindergarten children},
  author={Steffani, Susan and Selvester, Paula M},
  journal={Reading Horizons},
  volume={49},
  number={2},
  pages={4},
  year={2009}
}

@article{pike2010role,
  title={The role of illustrations in children's inferential comprehension},
  author={Pike, Meredith M and Barnes, Marcia A and Barron, Roderick W},
  journal={Journal of experimental child psychology},
  volume={105},
  number={3},
  pages={243--255},
  year={2010},
  publisher={Elsevier}
}

@article{martinez2012picture,
  title={Picture/text relationships: An investigation of literary elements in picturebooks},
  author={Martinez, Miriam and Harmon, Janis M},
  journal={Literacy Research and Instruction},
  volume={51},
  number={4},
  pages={323--343},
  year={2012},
  publisher={Taylor \& Francis}
}


@article{sysoevexploring,
  title={Exploring SpeechBlocks: Piloting a Constructionist Literacy App with Preschool Children},
  author={Sysoev, I and Hershman, A and Fine, S and Roy, D and Soltangheis, M and Fitzpatrick, B}
}