What Are The Pen Names That Isaac Asimov Used?

There are two pen names that Isaac Asimov used to write some of his books. One of the names was George E. Dale and another one was Paul French. With the pen name Paul French he wrote one of the most famous books in his career. The book was titled as Lucky Starr series. In the series the lead character of the novel was named as Lucky Star and the book was primarily aimed at juvenile readers. The book has some insights of cold war too as it has been written when the cold war crisis was at its heat.
       
The series also has its fame because it is from this series that the term "Force-Blade' has been taken that in consequence has its inspiration from the movie of Star Wars.
      
As there are some popular characters came out from the series, the pen name is also become quite famous as it is this name that is considered as the creator of the characters.