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-rw-r--r--exercises/collections/README.md4
1 files changed, 2 insertions, 2 deletions
diff --git a/exercises/collections/README.md b/exercises/collections/README.md
index 9ded29a..af87863 100644
--- a/exercises/collections/README.md
+++ b/exercises/collections/README.md
@@ -14,7 +14,7 @@ structures that are used very often in Rust programs:
* A *vector* allows you to store a variable number of values next to
each other.
* A *hash map* allows you to associate a value with a particular key.
- You may also know this by the names *map* in C++, *dictionary* in
- Python or an *associative array* in other languages.
+ You may also know this by the names [*unordered map* in C++](https://en.cppreference.com/w/cpp/container/unordered_map),
+ [*dictionary* in Python](https://docs.python.org/3/tutorial/datastructures.html#dictionaries) or an *associative array* in other languages.
[Rust book chapter](https://doc.rust-lang.org/stable/book/ch08-01-vectors.html)