diff --git a/CHANGELOG.md b/CHANGELOG.md
index ebb3576..efcb3a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# v1.1
+## Breaking changes
+
+## Feature additions
+* Add support for multiple BibTeX inputs
+
 # v1.0
 ## Breaking changes
 * LaTeX source files are now provided using the `-f/--files` option rather than
diff --git a/TODO.md b/TODO.md
index 42d7c18..19127d1 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,4 +1,4 @@
 - [ ] Remove dependency on `ext.sh`
-- [ ] Support multiple reference BibTeX files
+- [x] Support multiple reference BibTeX files
 - [ ] Support a directory of reference BibTeX files
 - [x] Option to perform a dry-run (no file output, only print info to stdout)
diff --git a/bibx b/bibx
index db8fc16..115dd42 100755
--- a/bibx
+++ b/bibx
@@ -69,8 +69,8 @@ def get_parser():
         "-b",
         "--bib",
         help="BibTeX file(s) to look for entries in",
-        # action="extend",
-        # nargs="+",
+        action="extend",
+        nargs="+",
     )
     return parser
 
@@ -110,14 +110,16 @@ def main():
                     while entry := en.readline():
                         e_set = e_set.union(entry)
 
-            parser = BibTexParser()
-            parser.ignore_nonstandard_types = False
-            with open(args.bib) as bibtex_file:
-                bib_database = bibtexparser.load(bibtex_file, parser)
+            e_dict = {}
+            for file in args.bib:
+                with open(file) as bibtex_file:
+                    parser = BibTexParser()
+                    parser.ignore_nonstandard_types = False
+                    bib_database = bibtexparser.load(bibtex_file, parser)
+                    curr_dict = bib_database.entries_dict
+                    e_dict.update(curr_dict)
 
-            e_dict = bib_database.entries_dict
             out_db = BibDatabase()
-
             found = 0
             for entry in e_set:
                 if entry in e_dict.keys():
diff --git a/debug.sh b/debug.sh
new file mode 100755
index 0000000..9461da1
--- /dev/null
+++ b/debug.sh
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+python -m pdb ./bibx -b test/p*.bib -f test/*.tex -d
diff --git a/test/p1.bib b/test/p1.bib
new file mode 100644
index 0000000..22b8749
--- /dev/null
+++ b/test/p1.bib
@@ -0,0 +1,20 @@
+@inproceedings{avi_dist_dwt_fpga_2015,
+    author = {Avinash, C.S. and Alex, John Sahaya Rani},
+    booktitle = {2015 International Conference on Smart Technologies and Management for Computing, Communication, Controls, Energy and Materials (ICSTM)},
+    doi = {10.1109/ICSTM.2015.7225436},
+    number = {},
+    pages = {326-330},
+    title = {FPGA implementation of Discrete Wavelet Transform using Distributed Arithmetic Architecture},
+    volume = {},
+    year = {2015},
+}
+
+@inproceedings{mahajan2010efficient,
+    author = {Mahajan, Anurag and Mohanty, Basant K},
+    booktitle = {2010 IEEE Asia Pacific Conference on Circuits and Systems},
+    organization = {IEEE},
+    pages = {1195--1198},
+    title = {Efficient VLSI architecture for implementation of 1-D discrete wavelet transform based on distributed arithmetic},
+    year = {2010},
+}
+
diff --git a/test/p2.bib b/test/p2.bib
new file mode 100644
index 0000000..f3d9f2d
--- /dev/null
+++ b/test/p2.bib
@@ -0,0 +1,18 @@
+@inproceedings{zhou_da_fir_fpga,
+    author = {Yajun Zhou and Pingzheng Shi},
+    booktitle = {2011 International Conference on Multimedia Technology},
+    doi = {10.1109/ICMT.2011.6003032},
+    pages = {294-297},
+    title = {Distributed Arithmetic for FIR Filter implementation on FPGA},
+    year = {2011},
+}
+
+@article{shan1948,
+    author="Shannon, C.E.",
+    journal="The Bell Systems Technical Journal",
+    title="A Mathematical Theory of Communication",
+    year="1948",
+    volume="27",
+    pages="379-423, 623-656"
+}
+