CHYAN C-J, HENDERSON J, LO H-C. POSITIVE SOLUTIONS IN AN ANNULUS FOR NONLINEAR DIFFERENTIAL EQUATIONS ON A MEASURE CHAIN. Tamkang J. Math. [Internet]. 1999 Sep. 1 [cited 2024 Apr. 26];30(3):231-40. Available from: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4230