The European Physical Journal Plus
The European Physical Journal Plus > 2019 > 134 > 5 > 1-12
The European Physical Journal Plus > 2019 > 134 > 5 > 1-11
The European Physical Journal Plus > 2019 > 134 > 5 > 1-12
The European Physical Journal Plus > 2019 > 134 > 5 > 1-11