by Tzvetkov, T, Drandarov, N
Published in Vacuum (01.10.1998)

by Stoycheva-Topalova, R, Assa, J, Buroff, A, Tzvetkov, T, Necheva, S, Drandarov, N
Published in Vacuum (01.08.2000)

by Georgieva, S, Tzvetkov, T, Vitchev, RG, Drandarov, N
Published in Vacuum (01.10.1998)

by Georgieva, S, Vichev, R, Drandarov, N
Published in Vacuum (01.10.1996)

by Georgieva, S., Drandarov, N., Nikolov, B.
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (1995)

by Stoycheva-Topalova, R, Assa, J, Buroff, A, Tzvetkov, T, Necheva, S, Drandarov, N, Vichev, R
Published in Vacuum (01.10.1998)

by Stoycheva-Topalova, R, Assa, J, Buroff, A, Tzvetkov, T, Necheva, S, Drandarov, N, Vichev, R
Published in Vacuum (01.10.1998)

by Drandarov, N, Nikolov, B, Tsvetkov, T, Kebedgiev, A
Published in Nanotechnology (01.07.1993)

by Georgieva, S, Vichev, RG, Drandarov, N
Published in Vacuum (01.11.1993)

by Drandarov, N, Georgieva, St, Nikolov, B, Donchev, T
Published in Vacuum (01.11.1993)

by Drandarov, N, Nikolov, B, Tsvetkov, T, Kebedgiev, A
Published in Vacuum (01.11.1993)

by Drandarov, N., Nikolov, B., Valchovska, Tsv
Published in Vacuum (1991)

by Tzvetkov, Tochko, Drandarov, Novak
Published in Ultramicroscopy (01.09.1999)

by Stoycheva-Topalova, R, Assa, J, Buroff, A, Tzvetkov, T, Necheva, S, Drandarov, N
Published in Vacuum (2000)

by Stoycheva-Topalova, R, Assa, J, Buroff, A, Tzvetkov, T, Necheva, S, Drandarov, N, Vichev, R
Published in Vacuum (1998)

by Stoycheva-Topalova, R, Assa, J, Buroff, A, Tzvetkov, T, Necheva, S, Drandarov, N, Vichev, R
Published in Vacuum (1998)

by Georgieva, S, Vichev, R G, Drandarov, N
Published in Vacuum (23.09.1991)

by Drandarov, N, Nikolov, B, Valchovska, T S
Published in Vacuum (21.09.1989)

by Drandarov, N, Georgieva, S T, Nikolov, B, Donchev, T
Published in Vacuum (23.09.1991)

by Drandarov, N, Nikolov, B, Tsvetkov, T, Kebedgiev, A
Published in Vacuum (23.09.1991)