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    ".. [1] Le Besnerais, G., & Champagnat, F. (2005, September). Dense",
    "   optical flow by iterative local window registration. In IEEE",
    "   International Conference on Image Processing 2005 (Vol. 1,",
    "   pp. I-137). IEEE. :DOI:`10.1109/ICIP.2005.1529706`",
    ".. [2] Plyer, A., Le Besnerais, G., & Champagnat,",
    "   F. (2016). Massively parallel Lucas Kanade optical flow for",
    "   real-time video processing applications. Journal of Real-Time",
    "   Image Processing, 11(4), 713-730. :DOI:`10.1007/s11554-014-0423-0`"
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