v1.6.0

Update ACM and DBLP (Thank ToSeven and HJhao ).
Fix #3 .

Update IEEE

Update IEEE to Fix #2

Support Springer

Support Springer

v1.3.0

Support of DBLP and update CCF rank to 2019. (Thank yishanchuan)

v1.1.0

Supports CCF rankings on ACM Digital Library.

v1.0.0

Supports CCF rankings on IEEExplore.