removed unused citation

}

# (old, arbitrary citation for TNL)

@Article{oberhuber:2011image,

  author    = {Oberhuber, Tom{\'a}{\v{s}} and Suzuki, Atsushi and Vacata, Jan and {\v{Z}}abka, V{\'\i}t{\v{e}}zslav and 鈴木厚 and スズキアツシ},

  journal   = {Journal of Math-for-Industry},

  title     = {Image segmentation using {CUDA} implementations of the {Runge-Kutta-Merson} and {GMRES} methods},

  year      = {2011},

  pages     = {73--79},

  publisher = {Faculty of Mathematics, Kyushu University},

  url       = {https://catalog.lib.kyushu-u.ac.jp/ja/recordID/20615},

}

# new TNL paper

@Article{oberhuber:2021tnl,

  author  = {Oberhuber, Tomáš and Klinkovský, Jakub and Fučík, Radek},