Lou van den Dries, On the Elementary Theory of Restricted Elementary Functions, The Journal of Symbolic Logic, Vol. 53, No. 3 (Sep., 1988), pp. 796-808 ...

Stephen C. Milne, A $q$-Analog of Restricted Growth Functions, Dobinski's Equality, and Charlier Polynomials, Transactions of the American Mathematical Society, Vol ...

These experiments suggest that self-reactive CD1-restricted T cells may contribute crucially to immune function in vivo by inducing and regulating DC maturation.