diff --git a/0ctf-2016/README.md b/0ctf-2016/README.md
index bc47e162..2203ef6a 100644
--- a/0ctf-2016/README.md
+++ b/0ctf-2016/README.md
@@ -10,8 +10,11 @@
 ## External write-ups only
 
 * [crypto/equation-2](crypto/equation-2)
+* [crypto/rsa-2](crypto/rsa-2)
 * [exploit/warumup-2](exploit/warumup-2)
 * [exploit/sandbox-5](exploit/sandbox-5)
+* [mobile/boomshakalaka-3](mobile/boomshakalaka-3)
+* [reverse/trace-4](reverse/trace-4)
 * [web/piapiapia-6](web/piapiapia-6)
 * [web/monkey-4](web/monkey-4)
 * [web/rand_2-2](web/rand_2-2)
@@ -21,7 +24,6 @@
 
 * [crypto/arsenal-8](crypto/arsenal-8)
 * [crypto/peoples-square-6](crypto/peoples-square-6)
-* [crypto/rsa-2](crypto/rsa-2)
 * [exploit/3-3](exploit/3-3)
 * [exploit/freecell-7](exploit/freecell-7)
 * [exploit/jeap-10](exploit/jeap-10)
@@ -29,12 +31,10 @@
 * [misc/checkin-1](misc/checkin-1)
 * [misc/opm-3](misc/opm-3)
 * [misc/xor-painter-4](misc/xor-painter-4)
-* [mobile/boomshakalaka-3](mobile/boomshakalaka-3)
 * [mobile/state-of-the-art-5](mobile/state-of-the-art-5)
 * [mobile/webdroid++-7](mobile/webdroid++-7)
 * [reverse/momo-3](reverse/momo-3)
 * [reverse/overheard-6](reverse/overheard-6)
 * [reverse/papi-8](reverse/papi-8)
-* [reverse/trace-4](reverse/trace-4)
 * [reverse/vm-7](reverse/vm-7)
 * [web/guestbook-2-7](web/guestbook-2-7)
diff --git a/0ctf-2016/crypto/rsa-2/README.md b/0ctf-2016/crypto/rsa-2/README.md
index 2ad295a1..105eeea3 100644
--- a/0ctf-2016/crypto/rsa-2/README.md
+++ b/0ctf-2016/crypto/rsa-2/README.md
@@ -17,4 +17,4 @@
 
 ## Other write-ups and resources
 
-* none yet
+* <https://github.com/p4-team/ctf/tree/master/2016-03-12-0ctf/rsa> 
diff --git a/0ctf-2016/mobile/boomshakalaka-3/README.md b/0ctf-2016/mobile/boomshakalaka-3/README.md
index d60b2513..ef9dde48 100644
--- a/0ctf-2016/mobile/boomshakalaka-3/README.md
+++ b/0ctf-2016/mobile/boomshakalaka-3/README.md
@@ -15,4 +15,4 @@
 
 ## Other write-ups and resources
 
-* none yet
+* <https://eugenekolo.com/blog/0ctf-2016-boomshakalaka-writeup/> 
diff --git a/0ctf-2016/reverse/trace-4/README.md b/0ctf-2016/reverse/trace-4/README.md
index 9c38995a..62fde8d2 100644
--- a/0ctf-2016/reverse/trace-4/README.md
+++ b/0ctf-2016/reverse/trace-4/README.md
@@ -23,4 +23,4 @@
 
 ## Other write-ups and resources
 
-* none yet
+* <https://github.com/p4-team/ctf/tree/master/2016-03-12-0ctf/trace>