On minimal ideals in the ring of real-valued continuous functions on a frame
pp. 1–13: Abstract, GZIP-PS (451 KiB), PDF (447 KiB)
Isotropic almost complex structures and harmonic unit vector fields
pp. 15–32: Abstract, GZIP-PS (456 KiB), PDF (477 KiB)
On the construction and the realization of wild monoids
pp. 33–64: Abstract, GZIP-PS (614 KiB), PDF (611 KiB)