I am looking for a reference that gives the definition and has summarized the dual Coxeter number for superalgebras, especially for $\mathfrak{u}(m|n)$ (the Lie algebra of unitary supergroup $U(m|n)$). 



Dual Coxeter Number for Superalgberas
The dual Coxeter number for basic Lie superalgebras is given in the table on page 16 of [Kostant’s cubic Dirac operator of Lie superalgebras](https://core.ac.uk/download/pdf/25269566.pdf). Also, the generalization of the Freudenthal-de Vries strange formula holds for Lie superalgebras as well (equation (38) of the above reference).


