diff --git a/readme.md b/readme.md
index 74cbb32..64e3dff 100644
--- a/readme.md
+++ b/readme.md
@@ -54,3 +54,9 @@ Formats the text STRING to fit a pixel width of LINE-PIXEL per line and returns
 ```(ekp-pixel-range-justify string min-pixel max-pixel)```
 
 Searches for optimal typesetting within the range of MIN-PIXEL to MAX-PIXEL. Returns a cons-cell where the car is the formatted text and the cdr is the pixel value achieving the best typesetting result.
+
+## Credits
+
+- The core algorithm is fundamentally derived from the seminal paper: "Breaking Paragraphs into Lines" by ​​DONALD E. KNUTH AND MICHAEL F. PLASS​​.
+
+- The implementation of ​​Latin word hyphenation​​ is adapted from the source code of the ​​`Pyphen​`​ Python library, and the corresponding dictionaries originate from this project: https://github.com/Kozea/Pyphen
diff --git a/readme_zh.md b/readme_zh.md
index 25e5615..4a0767b 100644
--- a/readme_zh.md
+++ b/readme_zh.md
@@ -43,3 +43,9 @@ Emacs-kp 实现了 knuth-plass 排版算法，但其功能不局限于英文排
 ```(ekp-pixel-range-justify string min-pixel max-pixel)```
 
 在 MIN-PIXEL 到 MAX-PIXEL 的返回内寻找最优排版，返回一个 cons-cell，car 是排版后的文本，cdr 是最优排版效果的像素值。
+
+## 感谢
+
+1. 毫无疑问核心算法源自此篇论文 "Breaking Paragraphs into Lines" by DONALD E. KNUTH AND MICHAEL F. PLASS
+
+2. 拉丁单词的 hypen 断词的实现是由 Pyphen 这个 python 库的代码转写而来的，词库也来源于此: https://github.com/Kozea/Pyphen