diff --git a/lib/node_modules/@stdlib/math/base/special/bessely1/README.md b/lib/node_modules/@stdlib/math/base/special/bessely1/README.md
index 2384cee5cca8..3c79acea7d02 100644
--- a/lib/node_modules/@stdlib/math/base/special/bessely1/README.md
+++ b/lib/node_modules/@stdlib/math/base/special/bessely1/README.md
@@ -107,6 +107,94 @@ logEachMap( 'bessely1(%0.4f) = %0.4f', x, bessely1 );
+
+
+* * *
+
+
+
+## C APIs
+
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+
+
+### Usage
+
+```c
+#include "stdlib/math/base/special/bessely1.h"
+```
+
+#### stdlib_base_bessely1( x )
+
+Computes the [Bessel function of the second kind][bessel-second-kind] of order one at `x`.
+
+```c
+double out = stdlib_base_bessely1( 0.0 );
+// returns -Infinity
+
+out = stdlib_base_bessely1( 1.0 );
+// returns ~-0.781
+```
+
+The function accepts the following arguments:
+
+- **x**: `[in] double` input value.
+
+```c
+double stdlib_base_bessely1( const double x );
+```
+
+
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+
+### Examples
+
+```c
+#include "stdlib/math/base/special/bessely1.h"
+#include
+
+int main( void ) {
+ const double x[] = { 0.0, 1.0, 2.0, 3.0, 4.0 };
+
+ double y;
+ int i;
+ for ( i = 0; i < 5; i++ ) {
+ y = stdlib_base_bessely1( x[ i ] );
+ printf( "bessely1(%lf) = %lf\n", x[ i ], y );
+ }
+}
+```
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