diff --git a/mdbx.h++ b/mdbx.h++
index 5160ed0c..1e996d8a 100644
--- a/mdbx.h++
+++ b/mdbx.h++
@@ -3000,7 +3000,10 @@ public:
 
   //----------------------------------------------------------------------------
 
-  /// Database geometry for size management.
+  /// \brief Database geometry for size management.
+  /// \see env_managed::create_parameters
+  /// \see env_managed::env_managed(const ::std::string &pathname, const create_parameters &, const operate_parameters &, bool accede)
+
   struct LIBMDBX_API_TYPE geometry {
     enum : int64_t {
       default_value = -1,         ///< Means "keep current or use default"
@@ -3659,6 +3662,7 @@ public:
                        bool accede = true);
 
   /// \brief Additional parameters for creating a new database.
+  /// \see env_managed(const ::std::string &pathname, const create_parameters &, const operate_parameters &, bool accede)
   struct create_parameters {
     env::geometry geometry;
     mdbx_mode_t file_mode_bits{0640};