(1) Ab initio (CASPT2) Excited State Calculations, Including the
     Circular Dichroism, of Helicaly Twisted Cyanine Dyes
     Marko Schreiber, Rainer Vahrenhorst, Volker Buß, and Markus P. Fülscher,
     Chirality 2001, 13, 571-576. 

(2) Non-empirical calculation of polymethine excited states
     Volker Buß, Marko Schreiber and Markus P. Fülscher, 
     Angew. Chemie Int. Ed. 2001, 3189-3190.

(3) The Electronic Spectra of Symmetric Cyanine Dyes. A CASPT2 Study
     Marko Schreiber, Volker Buß and Markus P. Fülscher, 
     Physical Chemistry - Chemical Physics 2001, 3, 3906-3912.

(4) CASPT2 calculation of the excited states of symmetric polyenyl cations
     Marko Schreiber and Volker Buß, 
     Physical Chemistry - Chemical Physics 2002, 4, 3305-3310.

(5) Origin of the Bathochromic Shift in the Early Photointermediates of the
     Rhodopsin Visual Cycle: A CASSCF/CASPT2 Study
     Marko Schreiber and Volker Buß, 
     Int. J. Quantum Chem. 2003, 95, 882-889.
     supporting information (205kb).

(6) Exploring the Opsin Shift with Ab Initio Methods: Geometry and Counterion
     Effects on the Electronic Spectrum of Retinal
     M. Schreiber, M. Sugihara and V. Buß,
     J. Chem. Phys. 2003, 119, 12045-12048.
     supporting information (65kb).

(7) Quantum Mechanical Studies on the Crystallographic Model of Bathorhodopsin
     M. Schreiber, M. Sugihara, T. Okada and V. Buß,
     Angew. Chem. Int. Ed. 2006, 45, 4274 –4277.

(8) An ab Initio Study of the Excited States, Isomerization Energy Profiles and Conical
     Intersections of a Chiral Cyclohexylidene Derivative
     M. Schreiber, M. Barbatti, S. Zilberg, H. Lischka and L. González,
     J. Phys. Chem. A. 2007, in print.

(9) Structure and Bonding of Ag(I)-DNA Base Complexes and Ag(I)-Adenine-Cytosine Mispairs
     M. Schreiber and L. González,
     J. Chem. Phys. 2006, submitted.

(10) A CASPT2 study of the excited states of adenine tautomers with silver ions.
     M. Schreiber and L. González,
     Chem. Phys. Lett.. 2006, submitted.