Variational approximations using Gaussian ansatz, false instability, and its remedy in nonlinear Schrödinger lattices R Rusin, R Kusdiantara, H Susanto Journal of Physics A: Mathematical and Theoretical 51 (47), 475202, 2018 | 6 | 2018 |

Variational approximations of soliton dynamics in the Ablowitz-Musslimani nonlinear Schrödinger equation R Rusin, R Kusdiantara, H Susanto Physics Letters A 383 (17), 2039-2045, 2019 | 1 | 2019 |

Optimum sum labeling of finite union of sum graphs H Burhan, R Rusin, KA Sugeng Journal of Combinatorial Mathematics and Combinatorial Computing 65, 133, 2008 | 1 | 2008 |

Symmetry breaking bifurcations in the NLS equation with an asymmetric delta potential R Rusin, R Marangell, H Susanto Nonlinear Dynamics 100 (4), 3815-3824, 2020 | | 2020 |

Analysis of solitary waves in inhomogeneous systems R Rusin University of Essex, 2020 | | 2020 |

Rayleigh-Ritz approximation for the stability of localised waves R Rusin, H Susanto AIP Conference Proceedings 2192 (1), 060016, 2019 | | 2019 |

QuasiPAS Model Using The Fourth, Fifth and Sixth Positive Root of j2(x) and j3(x) AA Bachtiar, N Marina, R Rusin International Journal of Engineering & Technology IJET-IJENS 11 (5), 2011 | | 2011 |