TY  - BOOK
AU  - Henderson,Johnny
AU  - Luca,Rodica
TI  - Boundary value problems for systems of differential, difference and fractional equations: positive solutions 
SN  - 9780128036525
AV  - QA372 H46
PY  - 2016///
CY  - Amsterdam
PB  - Elsevier
KW  - Ecuaciones diferenciales funcionales
KW  - Problemas de valores de frontera
ER  -