"We have discovered that single-stranded DNA containing short guanine-rich motifs will self-associate at physiological salt concentrations to make four-stranded structures in which the strands run in parallel fashion. We believe these complexes are held together by guanines bonded to each other by Hoogsteen pairing. Such guanine-rich sequences occur in immunoglobulin switch regions1, in gene promoters2,3, and in chromosomal telomeres4.

I'm studying for PhD plant biotechnology exam. This book would be a great help. Maybe someone have a pdf file?

Who can me give access to this study:

Dear all,
If anyone has this paper it could be very helpful.

Linnavuori, R. 1972. On the taxonomy of the genus Geocoris Fn (Het., Lygaeidae). Annales Entomologici Fennici 38(2): 100-106

I'm also searching for this one:
Péricart, 1994. Lygaeidae paléarctiques: synonymies, combinaisons nouvelles et description de deux Geocoris nouveaux (Hemiptera) - Bulletin de la Société entomologique de France 99, 93-105

Thanks,
Alan