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diff --git a/README.md b/README.md
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+# AccelAsc for R7RS
+
+This library provides an implementation of the algorithm called `accel_asc` by Jerome Kelleher, which generates integer partitions in R7RS.
+For more details, please refer to [Jerome Keller's website](https://jeromekelleher.net/category/combinatorics.html).
+
+## Requirements
+
+- `(scheme generator)` of R7RS-large or `(srfi 158)`
+
+## Usage
+
+### Library `(integer-partition accel-asc)`
+
+#### `(accel-asc n) → <generator>`
+
+Returns a generator that produces a list of integers representing integer partitions for the given value of integer `n`.
+
+## Examples
+
+```scheme
+(import (scheme base)
+        (srfi 158)
+        (integer-partition accel-asc))
+
+(generator-for-each (lambda (lst) (display lst) (newline))
+                    (accel-asc 8))
+```
+
+Output:
+
+```
+(1 1 1 1 1 1 1 1)
+(1 1 1 1 1 1 2)
+(1 1 1 1 1 3)
+(1 1 1 1 2 2)
+(1 1 1 1 4)
+(1 1 1 2 3)
+(1 1 1 5)
+(1 1 2 2 2)
+(1 1 2 4)
+(1 1 3 3)
+(1 1 6)
+(1 2 2 3)
+(1 2 5)
+(1 3 4)
+(1 7)
+(2 2 2 2)
+(2 2 4)
+(2 3 3)
+(2 6)
+(3 5)
+(4 4)
+(8)
+```
+
+## License
+
+This library is released under the Apache License Version 2.0.
+See the LICENSE file for more details.
+
+## References
+
+- Kelleher, J. (2006). *Encoding partitions as ascending compositions* [Doctoral dissertation, University College Cork]. [https://jeromekelleher.net/downloads/k06.pdf](https://jeromekelleher.net/downloads/k06.pdf)
+- Kelleher, J. (2014, May 26). *Generating Integer Partitions*. [https://jeromekelleher.net/generating-integer-partitions.html](https://jeromekelleher.net/generating-integer-partitions.html)
+
+## Copyright
+
+Copyright (c) 2024 Masaya Tojo <masaya@tojo.tokyo>
diff --git a/integer-partition/accel-asc.scm b/integer-partition/accel-asc.scm
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+;;; Copyright 2024 Masaya Tojo <masaya@tojo.tokyo>
+;;;
+;;; Licensed under the Apache License, Version 2.0 (the "License");
+;;; you may not use this file except in compliance with the License.
+;;; You may obtain a copy of the License at
+;;;
+;;;     http://www.apache.org/licenses/LICENSE-2.0
+;;;
+;;; Unless required by applicable law or agreed to in writing, software
+;;; distributed under the License is distributed on an "AS IS" BASIS,
+;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;;; See the License for the specific language governing permissions and
+;;; limitations under the License.
+
+(define-library (integer-partition accel-asc)
+  (export accel-asc)
+  (import (scheme base))
+  (cond-expand
+    ((library (scheme generator))
+     (import (only (scheme generator) make-coroutine-generator)))
+    ((library (srfi 158))
+     (import (only (srfi 158) make-coroutine-generator))))
+  (begin
+    (define-syntax while
+      (syntax-rules ()
+        ((_ condition body body* ...)
+         (let loop ()
+           (if condition
+               (begin
+                 body
+                 body* ...
+                 (loop))
+               (if #f #f)))))))
+  (begin
+    (define (accel-asc n)
+      (accel-asc* n vector->list))
+
+    (define (accel-asc* n convert)
+      (make-coroutine-generator
+       (lambda (yield)
+         (let ((a (make-vector (+ n 1) 0))
+               (k 1)
+               (x 0)
+               (y (- n 1)))
+           (while (not (= k 0))
+             (set! x (+ (vector-ref a (- k 1)) 1))
+             (set! k (- k 1))
+             (while (<= (* 2 x) y)
+               (vector-set! a k x)
+               (set! y (- y x))
+               (set! k (+ k 1)))
+             (let ((l (+ k 1)))
+               (while (<= x y)
+                 (vector-set! a k x)
+                 (vector-set! a l y)
+                 (yield (convert a 0 (+ k 2)))
+                 (set! x (+ x 1))
+                 (set! y (- y 1)))
+               (vector-set! a k (+ x y))
+               (set! y (+ x y -1))
+               (yield (convert a 0 (+ k 1)))))))))
+    ))