TY - ART ID - BVMC:228888 AU - Guntermann, Gail TI - An Analysis of Interlanguage Development Over Time: Part II, "ser and estar" JO - Hispania. Volume 75, Number 5, December 1992 CY - Alicante : Biblioteca Virtual Miguel de Cervantes, 2006 PY - 2006 UR - https://www.cervantesvirtual.com/nd/ark:/59851/bmczw1v7 ER -