Please teach me a method to let units avoiding obstacle(units)

Hi, I’m not native English speaker so I don’t speak English well but please understand it.

I’m just making RTS game and I finished putting units and that a unit could move.
And I implemented a game-map with a “Graph”.
I had units learn to avoid the not-moving obstacles, using A* algorithm for a graph.

But needs to have units avoid the moving obstacles appear!
They were ,for instance, units, in the direction of travel.
I cant use A*algorithm for such moving units,
so that I use the method “Obstacle Avoidance”(…of Steering Behaviors of Mr.Reynolds)

But units came to “vibrate” hardly.
I apply a method that vibration become smooth by averaging the heading of units,
but it not worked well.

So, I want to be taught a method that units come to avoid the not-moving and moving obstacles smoothly.
I’m sorry when there is a thread of the topic that looks like this,
I’m glad to teach me the thread.