TY - JOUR AU - Asaduzzaman, Md. AU - Ali, Md. Zulfikar TI - On the symmetric positive solutions of nonlinear fourth order ordinary differential equations with four-point boundary value conditions: a fixed point theory approach JO - Journal of nonlinear sciences and its applications PY - 2020 SP - 364 EP - 377 VL - 13 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.22436/jnsa.013.06.06/ DO - 10.22436/jnsa.013.06.06 LA - en ID - JNSA_2020_13_6_a5 ER -