Three-dimensional nonparaxial accelerating beams from the transverse Whittaker integralYiqi Zhang, Milivoj R. Belić, Jia Sun, Huaibin Zheng, Haixia Chen, Changbiao Li, Zhiguo Wang and Yanpeng ZhangEPL, 107 3 (2014) 34001DOI: https://doi.org/10.1209/0295-5075/107/34001