“…(1.1) can be considered as a natural "generalization" of the "usual" NFDEs with time-dependent delays of the form d dt D(t, x t ) = f (t, x t ), (1.4) but (1.4) may also contain (1.1) depending on appropriate conditions on D and f , like in [22]. The basic well-posedness theory for several classes of (1.4), especially for the linear case, is well-developed [2,5,14,16,31]. Existence, uniqueness and numerical approximation of solutions was studied in [20] for SD-NFDEs of the form d dt…”