[1
]Department of Physics and I3N, University of Aveiro, Campus Santiago, 3810-193 Aveiro,
Portugal
[2
]Physics Faculty, Southern Federal University, Zorge Street 5, Rostov-on-Don 344090,
Russian Federation
[3
]Institute of Mathematical Problems of Biology, Keldysh Institute of Applied Mathematics,
Russian Academy of Sciences, Vitkevicha Street 1, Pushchino, 142290 Moscow Region,
Russian Federation
[4
]Department of Engineering Sciences and Mathematics, Luleå University of Technology,
SE-97187 Luleå, Sweden