1. Hollow borosilicate microspheres from aqueous solution;Hagerman,1995
2. Microsphere fabrication and applications: an overview;Wilcox,1995
3. Holosphere — a novel ceramic material;Sargeant;Br Ceram Trans J,1991
4. Sol-gel derived ceramic bubbles;Moh,1995
5. Design guideline and water extraction synthesis capabilities for hollow ceramic microspheres for low dielectric constant inorganic substrates;Wilcox,1995