Mapping child growth failure across low- and middle-income countries-for-age, weight-for-height, or weight-for-age
z-score, respectively, that is more than two standard deviations
EXISTENCE OF SOLUTIONS FOR A CLASS OF ONE-DIMENSIONAL MODELS OF PEDESTRIAN EVACUATIONS of
El-Khatib, Goatin, and Rosini [
Z. Angew. Math. Phys., 64 (2013), pp. 223–251]. Existence holds either